There is no such thing as a definitive list of movies everyone must watch. Cinema is too big for that, and personal taste matters too much. Someone who loves science fiction may have little interest in musicals, while a horror fan and a romantic-comedy obsessive could create completely different lists of essential films.

Still, certain movies are worth watching even if they fall outside your usual taste. Some changed how films were made. Others created characters, scenes or lines that became part of popular culture. A few are simply so good at what they do that decades later, filmmakers are still trying to recreate their magic.

If you want to understand how movies became what they are today, these are some excellent places to start.

The early classics proved what movies could do

You do not have to become an expert on silent cinema to appreciate how inventive early filmmakers were.

Charlie Chaplin’s City Lights from 1931 is a perfect example. It combines physical comedy with an unexpectedly emotional story, demonstrating how much could be communicated visually even as Hollywood was transitioning toward sound.

A decade later, Citizen Kane pushed filmmaking in new directions with its cinematography, editing and unconventional narrative structure. Its reputation as one of the greatest films ever made can make watching it feel like homework, but underneath all that historical importance is a fascinating story about wealth, power and isolation.

Then there is Casablanca. Released in 1942, it remains one of the clearest examples of classic Hollywood storytelling. Romance, war, sacrifice and endlessly memorable dialogue come together in a movie that still feels remarkably accessible.

The 1950s and 1960s expanded what cinema could look like

By the 1950s, filmmakers were experimenting with scale, color and genre in increasingly ambitious ways.

Singin’ in the Rain turned Hollywood’s transition from silent films to sound into one of cinema’s most joyful musicals. Alfred Hitchcock’s Vertigo and Psycho demonstrated how suspense could come from psychology as much as action.

Akira Kurosawa’s Seven Samurai is another essential film from this period. Its story of warriors brought together to defend a village influenced generations of action and adventure movies. Even viewers who have never seen it have probably watched something inspired by it.

The 1960s became even more adventurous. 2001: A Space Odyssey treated science fiction with a seriousness and visual ambition that still feels extraordinary. Sergio Leone’s The Good, the Bad and the Ugly transformed the western into something operatic, stylish and unmistakably cool.

These movies remind us that “old” does not necessarily mean simple.

The 1970s changed Hollywood

The 1970s produced an almost ridiculous number of influential films.

The Godfather and The Godfather Part II turned a crime saga into a sprawling story about family, power and corruption. Jaws made audiences terrified of going into the ocean and helped establish the modern summer blockbuster.

Then Star Wars arrived in 1977.

Its combination of science fiction, fantasy, adventure and groundbreaking visual effects changed Hollywood’s understanding of what a blockbuster could become. The movie also demonstrated the enormous potential of franchises, merchandising and fictional universes that extended far beyond a single film.

For something completely different, Taxi Driver offered a darker vision of American life, while Alien closed the decade by combining science fiction and horror with terrifying efficiency.

Few eras demonstrate cinema’s range better.

The 1980s made entertainment enormous fun

The 1980s produced movies that seemed almost genetically designed to be rewatched.

Raiders of the Lost Ark delivered old-fashioned adventure with modern energy. Back to the Future turned a complicated time-travel premise into an effortlessly entertaining comedy. The Shining became one of horror’s most recognizable films, while Blade Runner created a science-fiction world whose visual influence can still be seen everywhere.

The decade also gave audiences E.T. the Extra-Terrestrial, The Breakfast Club, Die Hard and The Terminator.

What makes many of these films endure is how clearly they understand their identities. Die Hard knows exactly what kind of action movie it wants to be. The Breakfast Club understands teenage insecurity. Back to the Future wastes almost no part of its brilliantly constructed story.

They are accessible movies with surprisingly strong filmmaking underneath.

The 1990s gave us modern classics

The 1990s sit in an interesting position. The films are old enough to feel nostalgic but modern enough that many still resemble movies being made today.

Goodfellas brought extraordinary energy to the gangster genre. The Silence of the Lambs created one of cinema’s most unsettling villains. Jurassic Park made digital effects feel genuinely miraculous.

Then came films such as Pulp Fiction, The Shawshank Redemption, The Truman Show, Saving Private Ryan, The Matrix and Fight Club.

The decade also produced Titanic, a movie so enormously successful that its release became a cultural event in itself.

If someone wanted a crash course in the foundations of modern mainstream cinema, the 1990s would be a very good place to begin.

The 2000s proved blockbusters could still surprise us

The 2000s saw franchises become increasingly important, but some of the decade’s biggest movies were also remarkably ambitious.

Peter Jackson’s The Lord of the Rings trilogy demonstrated that enormous fantasy filmmaking could combine spectacle with genuine emotional weight. Christopher Nolan’s The Dark Knight pushed superhero movies toward crime drama, while Gladiator revived interest in historical epics.

Elsewhere, Spirited Away offered a breathtaking introduction to Hayao Miyazaki’s animation, Eternal Sunshine of the Spotless Mind turned heartbreak into inventive science fiction, and No Country for Old Men delivered a haunting modern western.

The decade also gave us There Will Be Blood, Pan’s Labyrinth and The Departed, making it much harder to claim that serious cinema disappeared when franchises became dominant.

Recent movies show that cinema keeps reinventing itself

The 2010s and 2020s arrived during enormous changes in how movies were distributed and watched, but great films continued to emerge.

Inception turned a complicated dream concept into a blockbuster. Mad Max: Fury Road demonstrated how exhilarating practical action filmmaking could still be. Get Out used horror to explore race and social behavior, while Parasite became a global phenomenon that crossed language barriers with remarkable ease.

Movies such as Moonlight, Whiplash, Everything Everywhere All at Once and Oppenheimer show just how broad modern cinema remains.

There is no single direction movies are heading, and that is probably a good thing.

Great movies don’t really belong to one era

Watching older movies can initially require a small adjustment. The pacing may be different. The acting style may feel unfamiliar. The visual effects may reveal their age.

Give them a little time.

One of the pleasures of exploring cinema is discovering how quickly a truly great movie stops feeling old. Once the story takes over, the decade becomes much less important.

You also begin noticing connections everywhere. A shot in a modern blockbuster suddenly reminds you of Lawrence of Arabia. A science-fiction film contains traces of 2001. An action sequence owes something to Seven Samurai.

Movies are constantly talking to the movies that came before them.

Watching across different eras lets you join that conversation.