Gag Reel
Go into the Bonus Features and then into the deleted scenes and go over to resume movie and press down you should see Jim Carrey`s face pop up at the bottom of the screen press enter on your remote and you get a GAG-REEL.

Alternate Opening
Insert the disc. When it opens to main screen DONT TOUCH ANY BUTTONS ON YOUR REMOTE. The scenes at the bottom will play, let them cycle through twice. After this, a pop up will show asking Charlie if he wants to take his medication. if you click yes, nothing happens, but if you click no, you are taken to an alternate opening screen with Hank instead of Charlie. To get back to the original, turn off the dvd player.