What is the difference between a frag movie and a montage

A montage (call of duty) is a collection of good clips. Mostly quad feeds, triples, and quads. Montages are based on clips recorded from public matches.
A frag movie is also a collection of good clips. But apart from a montage, Frag Movies are 5v5 pcw's (practice clan wars) or 5v5 clan wars. Good Frag Movies clips are a lot harder to capture, since you are playing against a dedicated, organised and sometimes professional team.