useless trivia: What Word Means: To Hem In?

Questions

Stars:Who was the star of the 1936 film 'The Story of Louis Pasteur'?

SciFi:What important part did Canadian Douglas Rain play in the 1968 film 2001, A Space Odyssey?

Comedy:In the 1989 film When Harry Met Sally, what song did the lead characters sing on a store's karaoke machine?

Action/Adventure:In what 1994 film did bus #2525 play a pivotal role?

Comedy Filmline:"We find the defendants incredibly guilty."?