No, you can win an Oscar for directing a short film, but you can't win an Oscar for starring in a short film.
Ersatz (The Substitute) by Dusan Vukotic won in 1961 making it the first foreign animation to win an Oscar.
Technically, it was Flowers and Trees (1932). It was the first film to win the Oscar for Best Animated Short. Snow White and the Seven Dwarfs did not win and Oscar but it did receive a special honorary Oscar for its achievement as the first full-length animated film in history. The first feature length animated Disney film to win a competitive Oscar was Pinnochio. It won Best Score and Best Song (When You Wish Upon A Star). Ironically, as of 03/07/2010, Disney has yet to win the Oscar for Best Animated Feature (unless you count Pixar as part of Disney).
Gone with the Wind was the first full-length feature film in color to win the Oscar in 1940. However, in 1937, Give Me Liberty (released in 1936 by Warner Bros.) received the Oscar for Best Short Subject-Color.
Wall-e
No. The German director of the 2010 film "Diary of a Wimpy Kid" was a contributor to "The ChubbChubbs!" (2002), which won the award for Best Animated Short. But the Oscar went to its director, Eric Armstrong.
Ersatz (The Substitute) by Dusan Vukotic won in 1961 making it the first foreign animation to win an Oscar.
Technically, it was Flowers and Trees (1932). It was the first film to win the Oscar for Best Animated Short. Snow White and the Seven Dwarfs did not win and Oscar but it did receive a special honorary Oscar for its achievement as the first full-length animated film in history. The first feature length animated Disney film to win a competitive Oscar was Pinnochio. It won Best Score and Best Song (When You Wish Upon A Star). Ironically, as of 03/07/2010, Disney has yet to win the Oscar for Best Animated Feature (unless you count Pixar as part of Disney).
Chicago
Gone with the Wind was the first full-length feature film in color to win the Oscar in 1940. However, in 1937, Give Me Liberty (released in 1936 by Warner Bros.) received the Oscar for Best Short Subject-Color.
Wings (1927)
The Accused
Judgement at Nuremberg
No. But it was nominated for an Oscar in the Best Foreign Language Film category.
No, Lagaan was the first Indian (Hindi language) film nominated for Best Foreign Language Film, but it did not win.
No. The entry from Belgium was nominated for Best Foreign Language Film. But the Oscar went to "A Separation" from Iran.
True Grit (1969).
The Miracle Worker