Paps Bitch Out Amanda Bynes

3/25/2008 12:35 PM PDT
Amanda Bynes got the booing of a lifetime last night after stiffing a group of paps.

She's not in the movie, but photogs didn't let her slide when she tried to bypass the red carpet at the premiere of "Run Fatboy Run." Amanda did pull a 180 and came back, but the damage was done -- listen closely and you can hear one photog call her a "bitch" as she posed.