One movie I can't remember (I never actually saw it, I just remember from the commercials on TV) came out either in theatres or on DVD around October 2001, and all I remember is it had a line like this:
"Your dog has a twisted look on his face."
"That's because you're looking at its butt."
My family had just gotten a dog around this time, and it became a line that we used a lot, but I can't remember what movie it was from...