2 to 5 minutes is an extremely long time for a match move - it's really designed for a short clip of a few seconds. It takes time to analyze all the pixels in the frame to try to determine the motion. I suspect with such a long clip you are likely running out of RAM.
Freelance Producer/Editor/Motion Graphics Artist
Apple-certified Master Trainer
Author, Motion 4 from Peachpit Press http://www.applemotion.net