Oh this is quite funny.
First pick a movie or a tv show or a book title.
Then change a word in it for or add the word pants.
Here are a few to start it off.
Lord of the Rings: Return of the Pants
or Fellowship of the Pants :P
Pirates of the Caribean: Curse of the Black Pants
The Pants Reloded
See what stupid ones you can come up with :D