How to Eat With Your Butt

Goofs

 * The Thompsons had claimed that their son's name was "Tommy," but one of the men at the reunion celebration said the boy was called "Billy." Tommy could have been a nickname however.
 * When Ben Affleck is identified as their son, his shirt continually alternates between colors. One minute it's khaki, the next it's white, then it's khaki again.
 * When Cartman has his picture taken, he drops his hat. In the next scene, he takes his hat from his back pocket, not the floor.
 * In the last scene of this episode, Cartman is missing his double chin.Butteater'.gif