Sabotage is a 1936 Alfred Hitchcock film.
The version of this that's available at Google Video is missing the last 20 minutes or so, so be warned. It's available elsewhere, though, including through hulu.com:
The New York Times calls it "a masterly exercise in suspense". Salon.com describes it as "psychologically shattering" and says, "This film is as wrenching as it is eruptive."
12/5/2009: Only the Cinema has a review.