Trending badgeTrendingPosted 55 minutes agoSubscribe to Screen Time NewsletterCaret Down31 Acting Performances In Movies From Before 1975 That Everyone Needs To Watch With Their Own Eyes At Least OnceSidney Poitier in "To Sir, With Love" should be required viewing.by Nora DominickBuzzFeed StaffFacebookPinterestLink Recently, we asked the BuzzFeed Community to share their favorite movie performances by an actor in a movie from before 1975. Here are 31 of their top responses: There are some mild spoilers ahead!Note: Submissions have been edited for length and/or clarity. 1. First, Gregory Peck as Atticus Finch in To Kill a Mockingbird (1962) Universal Pictures / Via youtube.com "#1 of all time is Gregory Peck in To Kill a Mockingbird."-jonacunninghamt 2. Audrey Hepburn as Princess Ann in Roman Holiday (1953) Paramount Pictures "Audrey Hepburn in Roman Holiday was perfect. A combination of vulnerability and strength."-thatvillageidiot"I just watched Roman Holiday for the first time (!!!!) and I've got to say, Audrey Hepburn as Princess Ann is so captivating and delightful in it!"-noradominick 3. Bette Davis as Margo Channing in All About Eve (1950) 20th Century Fox / Via youtube.com Suggested by: glitterydaredevil931 4. Sidney Poitier as Mark Thackeray in To Sir, With Love (1967) Columbia Pictures / Via youtube.com Suggested by: brittaniasherbrook"That was a great movie! Those themes even resonate today."-nebulakenezzar"To Sir, With Love is my personal favorite performance from him."-bcd697 5. Julie Andrews as Mary Poppins in Mary Poppins (1964) Disney "I gotta go with Julie Andrews in Mary Poppins!"-betherick85"I should have realized I was queer when I had a crush on Julie Andrews at age 7, LOL. I'm 66 now and I still have a crush on her."-kebneter 6. Henry Fonda as Juror No. 8 in 12 Angry Men (1957) United Artists / Via youtube.com Suggested by: shinycactus9751 7. Rita Moreno as Anita in West Side Story (1961) United Artists Suggested by: thefearlessmuffin 8. Jack Lemmon as C.C. Baxter in The Apartment (1960) United Artists / Via youtube.com "Also Shirley MacLaine. She's just about as brilliant. I watch it every year."-evilpizza45 9. Christopher Plummer as Captain von Trapp in The Sound of Music (1965) 20th Century Fox / Via youtube.com Suggested by: bcd796 10. Vivien Leigh as Scarlett O'Hara in Gone with the Wind (1939) MGM / Via youtube.com Suggested by: jessicajonesluv 11. Anthony Perkins as Norman Bates in Psycho (1960) Paramount Pictures / Via youtube.com Suggested by: surprisedfish60 12. Audrey Hepburn as Eliza Doolittle in My Fair Lady (1964) Warner Bros / Via youtube.com "Audrey Hepburn in My Fair Lady will always be one of my favorites!"-jessicajonesluv 13. James Dean as James "Jim" Stark in Rebel Without a Cause (1955) Warner Bros / Via youtube.com "Also, James in East of Eden. Such an amazing and inspirational actor who was gone far too soon. His performances are what really got me into films (I now work in the industry)."-deliciousghoul3611 14. Humphrey Bogart as Rick Blaine in Casablanca (1942) Warner Bros / Via youtube.com Suggested by: stylishpumpkin848 15. Grace Kelly as Lisa Fremont in Rear Window (1954) Paramount Pictures / Via youtube.com Suggested by: dust2004"Grace Kelly has an honestly pretty stellar movie career, but my personal pick is Rear Window as my fave."-famousphone424 16. James "Jimmy" Stewart as L.B. "Jeff" Jefferies in Rear Window (1954) Paramount Pictures / Via youtube.com Suggested by: jonacunninghamt 17. Jean Hagen as Lina Lamont in Singin' in the Rain (1952) Warner Bros / Via youtube.com Suggested by: five_star 18. Paul Newman as Lucas "Luke" Jackson in Cool Hand Luke (1967) Warner Bros / Via youtube.com Suggested by: bacatcha 19. Barbra Streisand as Judy Maxwell in What's Up, Doc? (1972) Warner Bros / Via youtube.com "It is a slapstick comedy also starring Ryan O'Neal. Barbra was absolutely great in it. Shoutout also to Madeline Khan, in her first movie role! She was the perfect Eunice."-moosepeanut 20. Al Pacino as Michael Corleone in The Godfather (1972) Paramount Pictures / Via youtube.com Suggested by: joellejordan71 21. Vivien Leigh as Blanche DuBois in A Streetcar Named Desire (1951) Warner Bros / Via youtube.com Suggested by: whale_tail 22. Marlon Brando as Stanley Kowalski in A Streetcar Named Desire (1951) Warner Bros / Via youtube.com "Actually, it's a tie with Vivien Leigh in Streetcar Named Desire, too. Oddly enough, Mr. Brando was the only one of the four actors in that film not to win an Oscar that year. 'Stella!'"-shabooshabah 23. Bette Davis as Charlotte Vale in Now, Voyager (1942) Warner Bros / Via youtube.com Suggested by: five_star 24. Ruth Gordon as Minnie Castevet in Rosemary's Baby (1968) Paramount Pictures / Via youtube.com "Deserved an Oscar. Not only was she unnerving as a devil worshiper, but she was downright terrifying as a nosy neighbour."-emmerzz0011 25. Richard Burton as George in Who's Afraid of Virginia Woolf? (1966) Warner Bros / Via you