The sole animated trilogy on this list, the "How to Train Your Dragon" trilogy, proved that Disney didn't have a monopoly on beautifully told stories from 2010 to 2019.

The series, released by DreamWorks Animation, focused on the story of Hiccup, an awkward teenager who discovers that dragons, long-feared by his entire community as raging beasts, aren't what they seem.

As Hiccup (spoiler) loses his leg at the climax of the film, he is seen using a prosthetic in the next two films, making him a landmark in disability and amputee representation, as reported by The Washington Post.

Additionally, the score for this trilogy is so awe-inspiring that it became a meme on TikTok.

However, the real draw of this series is the absolutely heartwarming bond between Hiccup and his downright adorable dragon, Toothless. They're best friends! It's beautiful!

It's so popular that one of the lands at Universal Studios' Epic Universe is the Isle of Berk, where you can meet all your favorite characters in real life — even Toothless.

All three "How to Train Your Dragon" movies are streaming on Peacock. The first one is also available on HBO Max.

The "Lord of the Rings" trilogy, released from 2001 to 2003, told a sprawling tale of good versus evil set in a fictional world called Middle Earth.

Based upon J. R. R. Tolkien's series of books, there hadn't (and still hasn't) been anything quite like director Peter Jackson's trilogy. All three were filmed back-to-back in New Zealand, letting the actors and the creative team fully immerse themselves in the fantasy world.

And what a world Middle Earth is. It contains beautiful landscapes, compelling heroes and villains in Frodo, Gandalf, Saruman, and Gollum, and an inspiring story of the little guy triumphing over the strongest evil force in the world.

Any trilogy with extended cuts that are 4 hours long and that people genuinely love watching deserves its place on this list. Plus, all three were nominated for best picture at the Oscars, with the third and final installment, "The Return of the King," winning the top prize in 2004.

The "Lord of the Rings" trilogy is available to stream on HBO Max, while the prequel series "Rings of Power" is streaming on Prime Video.

The "Back to the Future" trilogy, which is celebrated every October 21 as the day Marty (an '80s teenager played by Michael J. Fox) travels in time, was a full-blown phenomenon in the '80s and '90s.

The films made an A-list movie star out of Fox, introduced Christopher Lloyd, who plays Marty's best friend and disgraced nuclear physicist Doc Brown, to a new generation, and made everyone long for flying skateboards and sneakers that tied themselves.

While we're still not at the level of technology we saw in "Back to the Future 2," the appeal of the story of Marty trying to simultaneously improve his parents' lives, save Doc from an untimely death, and ultimately return home from the Wild West, remains timeless.

So much so that a musical adaptation of the first film ran for two years on Broadway.

The "Back to the Future" trilogy is available to rent online.

After the mega-success of "Airplane!" in 1980, Leslie Nielsen once again spoofed a well-known profession with "The Naked Gun": a detective. Without "Naked Gun," we might not have gotten "Reno 911," "Brooklyn Nine-Nine," or even the "Austin Powers" movies.

"The Naked Gun" was such a huge success upon its 1988 release that two more sequels following the lovably dimwitted cop Sgt. Frank Drebin (Nielsen) were commissioned in 1991 and 1994.

Sgt. Drebin is so enduring that more than 30 years later, Liam Neeson was tapped to star in a "Naked Gun" reboot. It's set for release in August 2025.

The "Naked Gun" trilogy is available to stream on Paramount+.

Clint Eastwood starred in the "Man with No Name" trilogy, consisting of 1964's "A Fistful of Dollars," 1965's "For a Few Dollars More," and 1966's "The Good, the Bad, and the Ugly" — and a fun fact: This trilogy was actually crafted after the movies were released.

These Spaghetti Westerns were first released in Italy. Once United Artists picked up the distribution rights, the studio decided to package them together as one trilogy starring Eastwood as the titular man with no name (even though his characters do have different names in each).

However, these three movies changed Hollywood forever, as they introduced Eastwood to the movie-going masses, a move that affected the next 60 years (and counting) of cinema.

Director Sergio Leone's aesthetic has influenced countless movies and TV shows, including hits like "The Mandalorian." And, of course, Ennio Morricone's theme for "The Good, the Bad, and the Ugly" is still one of the most recognizable pieces of music of all time.

The "Man with No Name" trilogy is streaming on Tubi and Prime Video.

There's an argument to be made that Christopher Nolan's "Dark Knight" trilogy, released from 2005 to 2012, is the best superhero trilogy of all time.

But when Christian Bale took over as the Caped Crusader in 2005, it wasn't a given that the film would be a huge success, never mind that its sequel would become the first superhero to have an actor win an Academy Award (Heath Ledger, posthumously, for his performance as the Joker in "The Dark Knight").

Arguably, "The Dark Knight" (and the two films it's sandwiched between) changed the comic-book/superhero genre forever, paving the way for what it's become today — one of the most important genres at the box office — as well as the grittier and darker aesthetic many films adopted after.

Even if everyone isn't 100% satisfied with the trilogy's conclusion, "The Dark Knight Rises" was a huge box-office success and, 13 years later, is now one of the more impressive franchise-ending films.

"The Dark Knight" trilogy is available to stream on HBO Max.

If "Batman Begins" and its two sequels were more a realistic, grittier adaptation of a comic book, 2002's "Spider-Man" and its two sequels were ripped directly from the pages of Stan Lee's and Steve Ditko's comics in the '60s. Tobey Maguire looked eerily like a classic drawing of Peter Parker.

Even if "Spider-Man 3" didn't live up to the hype of the first two, "Spider-Man" and "Spider-Man 2" are some of the best comic-book movies of all time.

The "Spider-Man" trilogy is available to stream on Disney+.

The lone MCU trilogy to make its way on this list is the "Guardians of the Galaxy" trilogy. Expectations were low when the first "Guardians" film was released in 2014. Star-Lord, Gamora, Rocket Raccoon, Drax, and Groot were by no means beloved characters, and director James Gunn had never helmed a production of this magnitude before.

Thankfully, it was a breath of fresh air. The soundtrack was amazing, the characters were lovable and hilarious, and the look was so different from the rest of the primarily grounded Marvel Cinematic Universe.

"Vol. 2" followed in 2017, adding the wonderful Mantis and officially welcoming Nebula to the team.

Gunn made it clear that "Vol. 3," which was released in 2023, would be his final outing with this iteration of the Guardians, and they all had fittingly bittersweet endings.

The "Guardians" trilogy is available to stream on Disney+.

Decades after its original release from 1977 to 1983, we're still getting new "Star Wars" content, between the multitude of Disney+ shows, multiple cartoons, and two more sequel trilogies (neither of which lived up to the hype of the original space opera).

But even though we're still living in a sprawling, extended "Star Wars" universe, George Lucas' first trilogy of "A New Hope," "The Empire Strikes Back," and "Return of the Jedi," tells a relatively simple story that anyone can relate to: A small-town boy pines to explore the world, only to find out that life is much more complicated (and wonderful) when you leave your bubble.

Just add in some of fiction's most charming characters (Han Solo, Princess Leia, Obi-Wan Kenobi) and an iconically terrifying villain (Darth Vader), and you have three of the most influential, beloved movies ever.

The "Star Wars" trilogy is available to stream on Disney+.

There were horror movies before this trilogy, but nothing had come along quite like "Night of the Living Dead" upon its release in 1968.

The first film, which focuses on a small group of strangers riding out a zombie apocalypse in an abandoned cabin, is not just considered the first modern zombie movie — you're welcome, "Walking Dead" fans — but also one of the best horror films and one of the most influential movies of all time.

The next two follow-ups, released in 1978 and 1985 and also directed by indie film legend George Romero, continued the series.

While there are more also directed by Romero, they came 20+ years after the third film, and aren't held in quite the same esteem.

"Night of the Living Dead" and "Day of the Living Dead" are streaming on Tubi, while "Dawn of the Dead" is available to rent.

Not many trilogies can boast a three-for-three best picture nomination statistic (perhaps the only other trilogy might be the "Lord of the Rings" trilogy). But only "The Godfather" trilogy can claim two best picture wins, for its first two films.

The Italian-American mafia story has one of the greatest casts ever assembled — Marlon Brando, Al Pacino, Robert De Niro, Diane Keaton, James Caan, Robert Duvall, and Andy García, to name a few — and kick-started a mob/organized craze in pop culture that we're still living in today, including "Scarface," "Goodfellas," "The Sopranos," "Mob Wives," "Peaky Blinders," "MobLand," and more.

The "Godfather" trilogy is available to stream on Paramount+. Note that the third film is the newly recut version by Coppola re-titled "The Godfather Coda: The Death of Michael Corleone."

After the success of "Star Wars," Harrison Ford again teamed up with its creator George Lucas and none other than Steven Spielberg to bring one of the most iconic heroes to the big screen: Indiana Jones, an archaeology professor who also has the combat skills of a super-soldier.

And the original "Indiana Jones" trilogy, 1981's "Raiders of the Lost Ark," 1984's "Temple of Doom," and 1989's "The Last Crusade," remain exciting adventure films decades later — but the less we speak of 2008's "Kingdom of the Crystal Skull" the better and 2023's "Dial of Destiny" is good, but not entirely necessary.

The "Indiana Jones" trilogy and "Kingdom of the Crystal Skull" are available to stream on Disney+ and Paramount+. "Dial of Destiny" is only on Disney+.

The story of Jesse and Céline begins in 1995 when two strangers meet on a train to Budapest and decide to roam around the city of Vienna to kill time. They bond over their shared love of music and their similar outlook on life.

Much of the film's dialogue was cowritten by the stars, making actors Ethan Hawke and Julie Delpy's conversations all the more relatable and watchable.

In an interesting turn of events, the actors reunited nine years later for "Before Sunset" and nine years after that for "Before Midnight" to check in on the couple to see how love realistically evolves over two decades.

"Before Sunrise" and "Before Sunset" are available to rent online. "Before Midnight" is streaming on Disney+ and Hulu.

Director Sam Raimi has another trilogy on this list: the "Evil Dead" trilogy, consisting of "The Evil Dead" in 1981, "Evil Dead II" in 1987, and "Army of Darkness" in 1992.

The "Evil Dead" movies, or the "Ash Gets Punished Over Thousands of Years" trilogy, are cited as some of the most influential horror/comedy films of all time by outlets like Screen Rant. They were shepherded by director Raimi and star Bruce Campbell.

"Evil Dead" and its two sequels (well, one sequel and one remake/reboot) flawlessly balanced the black comedy and the horror staples of the zombie genre, paving the way for "Shaun of the Dead," "Ready or Not," "Scream," or even "Get Out."

"The Evil Dead" and "Army of Darkness" are available to rent, while "Evil Dead II" is streaming on The Roku Channel and Plex.

"The Vengeance Trilogy" isn't a trilogy with connecting characters, but rather is connected via themes of revenge and retribution.

South Korean director Park Chan-wook didn't initially consider 2002's "Sympathy for Mr. Vengeance," 2003's "Oldboy," and 2005's "Lady Vengeance" a trilogy, but it's clear that each film deals with similar themes.

All are films focusing on a character who is hell-bent on getting revenge on those who have wronged them — although, in the case of "Oldboy," it's unclear who's actually getting revenge.

Be warned: These movies are not for the faint of heart. But they are thought-provoking, disturbing, and well-acted.

"Sympathy for Mr. Vengeance" and "Lady Vengeance" are available to stream on Tubi and AMC+, and "Oldboy" is on Paramount+.