Adam at 2009-11-05 18:54:01:
I don't use POV shots, and there are only a few circumstances I can think of where they would be appropriate:
a) the character is somehow privy to another character's POV, like in THE EYES OF LAURA MARS
b)their vision has been impacted/enhanced somehow, like in SILENCE OF THE LAMBS with Buffalo Bill's infrared glasses, or DEJA VU with Denzel Washington's time-travel goggles, and it's an integral part of the scene
c) you show a POV shot of a character who's identity you don't want to reveal just yet - a la HALLOWEEN.