I can only help a little. ? where I am unsure and just guessing.
1 - Superman
2 - Airplane
6 - All the President's Men
9 - The Sound of Music?
11 - The Big Chill?
12 - Chariots of Fire?
20 - Monster
24 - The Pianist?
25 - Blazing Saddles
Drawing a blank on the rest. Sorry man....will try to think of more. Tough quiz!