My list of movies I think would give a big overview of the 80s and 90s. This is not all the movies I love from this period but ones I think are important from a pop culture perspective.
1980 Airplane!, The Blues Brothers, Caddyshack, The Blue Lagoon
1981 Raiders of the Lost Ark, Arthur, Stripes, Chariots of Fire, Superman II, Excalibur
1982 Star Trek II, ET, An Officer and a Gentleman, Poltergeist, Blade Runner, Tron, Porky's, Gandhi, Conan
1983 Flashdance, Risky Business, National Lampoon's Vacation, The Big Chill, Scarface, Wargames
1984 Ghostbusters, The Terminator, Beverly Hills Cop, The Karate Kid, Footloose, Gremlins, Romancing the Stone, Splash, Amadeus, Revenge of the Nerds, A Nightmare on Elm Street
1985 Back to the Future, The Breakfast Club, The Color Purple, The Goonies, Rambo
1986 Top Gun, Crocodile Dundee, Platoon, Aliens, Ferris Bueller's Day Off, Stand By Me, Three Amigos, Short Circuit
1987 Fatal Attraction, Good Morning Vietnam, The Untouchaables, Lethal Weapon, Dirty Dancing, Robocop, Predator, Spaceballs, Princess Bride, Wall Street, La Bamba
1988 Rain Man, Die Hard, Who Framed Roger Rabbit, Naked Gun, Beetlejuice
1989 Batman, Dead Poets Society, Honey I Shrunk the Kids, Driving Miss Daisy, When Harry Met Sally, The Little Mermaid, Bill and Ted's Excellent Adventure, Weekend at Bernies, The Abyss
1990 Ghost, Home Alone, Pretty Woman, Dances With Wolves, Total Recall, Hunt for Red October
1991 Terminator 2, Beauty and the Beast, Silence of the Lambs, Cape Fear, The Addams Family
1992 Aladdin, The Bodyguard, Basic Instinct, A Few Good Men, Bram Stoker's Dracula, White Men Can't Jump, Scent of a Woman, League of Their Own
1993 Jurassic Park, Mrs. Doubtfire, The Fugitive, Schindler's List, Indecent Proposal, Sleepless in Seattle, Philadelphia, Groundhog Day
1994 The Lion King, Forrest Gump, True Lies, Speed, Interview with the Vampire, Pulp Fiction, Ace Ventura, The Crow
1995 Toy Story, Apollo 13, Goldeneye, Seven, Casino
1996 Independence Day, Twister, Mission Impossible, Jerry Maguire
1997 Titanic, Men in Black, The Fifth Element
1998 Saving Private Ryan, There's Something About Mary, Armageddon
1999 The Sixth Sense, The Matrix, The Mummy, American Beauty, Austin Powers, The Phantom Menace
On the fence...
1980 Friday the 13th, Flash Gordon
1981 An American Werewolf in London, Escape From New York
1985 Fletch, Cocoon, Weird Science, Pee Wee's Big Adventure, Mask
1987 Three Men and a Baby, Moonstruck
1988 Twins, Young Guns
1989 Christmas Vacation, Born on the Fourth of July, Road House
1992 Sister Act, Unforgiven, Wayne's World
1993 Demolition Man, Free Willy
1994 Natural Born Killers, Dumb and Dumber, Santa Clause