Do you want to create that old film look with out purchasing expensive plug-ins? Unfortunately, Quick Times special effects settings create phony looking scratches. This article by Stephen Smith explores how to add that extra bit of pizzazz without breaking the bank.
Final Cut Pro
Click on the link above to find Stephen's tutorial for achieving that old 'film look' without other compositing tools or plug-ins.
This worked well. I even changed it up some. I added a sepia sequence to the two black and white sequences, offset back a frame on the bottom sequence and randomly changed the opacity of the sepia and remaing B&W clip. Nice effect.