Not quite as scientifically challenging as Garth's Geek Off, but still a workout for the neurons. John Tierney's "Tierney Lab" column in the NY Times features DeCAPitated puzzles, like the one below:

For the first puzzle, identify the edited movies. Hint: The first one is “Stigmata.”

Too easy? There's more where that came from, including answers if you're really stumped.