What is the song from a movie that is used as the theme for a movie production logo ?

Question

There is a movie studio production logo that uses a theme or song from a movie as it's theme. Does anyone know what it is ?

Update:

I'm not looking for the Warner Bros. Theme. Thanks, though.

Answer 1

Favorite Answer

The beginning of the Warner Bros theme is "As Time Goes By" from Casablanca (1942)

http://www.youtube.com/watch?v=llFD-hSRkBY

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