Don't drink and watch dudes
The only reason I have thought of putting a screen in my car is the possiblity of being able to put a modded x-box with a 120 or so gigs of music and being able to see what is playing, no different than the display on a mp3 player. That and the fact I'm hoping I can rig up some sort of gps system using linux on the x-box. That'd be nice. But yeah for movies just walk your ass inside and use all the money for a surround sound system (I already have one thats why I have to get the screen for the car, it all makes sense see?) But actually thinking about it airchinapilot is probably right, it'd be way too tempting to try and watch a movie or something so it's probably not a good idea at all :?