If you haven't watched it yet, I highly recommend that you check out the following video:
I was laughing my ass off throughout the whole thing (well, except for the silly last 10 seconds). It was created by the writer of Chronicle, and it has a few celebrity cameo appearances too. Normally I don't re-post stuff like this (the video will be growing in popularity), but it's something I couldn't resist sharing.
I haven't watched Chronicle yet, but I was planning on seeing it tomorrow.