2. West Side Story (1961) - One can argue that the role of Maria should have gone to a Hispanic actress or that Marni Nixon deserves more credit for dubbing the singing vocals. Neither of those detract from the fact that Natalie Wood provides the heart and soul of West Side Story. Her scenes with Richard Beymer make one believe that Maria and Tony become soulmates as soon as they spot each other on the dance floor. Watch her expressive face during the climax as she throws herself protectively over Tony's corpse and if you don't sniffle, you're not human.
3. Miracle on 34th Street (1947) - At age 9, she gives one of the best child performances of Hollywood's Golden Era in this holiday classic. Her incredibly natural acting never comes off as artificially cute and she holds her own in the charming scenes with Edmund Gwenn, one of the great character actors.
5. Rebel Without a Cause (1958) - While this is now regarded as, first and foremost, a James Dean film, it launched the "young adult" phase of Natalie Wood's film career. It also earned her the first of her three Oscar nominations for her performance as Judy. Ironically, director Nicholas Ray initially considered Natalie too wholesome and naive for the role. She captures Judy's teen angst beautifully, especially her difficult relationship with her father.
Honorable Mentions: Love With the Proper Stranger (1963), her third Oscar nomination and a fave among her fans; Gypsy (1962); and The Searchers (1956).