Too much punctuation
Simon Mayo's theory that the amount of punctuation in a film's title is inverse proportion to its quality. One example: National Treasure: Book Of Secrets - "the key word there is colon."
Reached its nadir with Hannah Montana / Miley Cyrus In The Best Of Both Worlds: Concert Tour - 3D.
Mark felt the rule didn't work because he loved Herbie: Fully Loaded.