Easter egg: In the "special features" section of the main menu, go to the top of the list of features, and hit the left arrow button on your DVD remote. A blue silhouette of a mini cooper will appear in the top left of the screen. Hit enter and we see Seth Green running different takes of the scene where he is alone in the car imitating Rob and Becky, the cable repair girl.
Character mistake: When Charlie is calling out the brick count to Napster from the subway, he describes it as being "13 across, 4 high, 4 deep". The bricks appear to be 2 deep in the safe (13x4x2), so he could just be lumping two shelves together, which works (13x4x4 = 13x4x2x2). The problem is that when the camera pans down there are 3 shelves in the safe. This means that there are more than the 208 bricks that Napster announces. (01:33:40)