Ferris Bueller's copyright

Maybe it's the submission on the Zombie 92A proposal I managed to finish two minutes before the 5pm deadline that's still fresh in my mind, but I'm a bit confused. This one minute clip I posted on YouTube from Ferris Bueller's Day Off didn't last too long before a C&D notice shut it down. Yet here's a few YouTube clips from the same movie which somehow don't attract the similar takedown notices. My logic circuits hurt.