I also like
PresentMovie Features:
* Plays QuickTime compatible movies (.mov, .mpg, VCDs). (and many .avi's)
* Stretches movies to full-screen without having to go through the multiple steps required in QuickTime Pro.
* Supports multiple monitors.
* Allows the user to change the size of the movie, rate and volume level.
Tips & Tricks:
* Simply drag movies (or a folder containing movies) to the application icon and they're displayed immediately.
PresentMovie is shareware, and it costs just $15.00. Download it, try it out, and then register your copy. For personal, non-profit use, a simple "thank you" email is adequate!