Here's a question for the video buffs out there:

I went over to a friend's place last night to help him calibrate his new 52" Sharp Aquos. Nice set!

Anway a question came up that I wasn't 100% sure on.

Most modern HD displays have a video setting that has 3:2 pulldown detection.
In most TV menu's I've seen the option to engage or disengage the 3:2 pulldown detection. Usually the options are called "Video" and Film or "auto", in this case it was Film Mode, and on or off. I'm not a video expert, but I believe the purpose of this setting is to apply the 3:2 pulldown processing.

DVE and other discs say to leave it on "Film" or "Auto". What I don't understand is why even have an option at all if the set auto-detects when it's needed? Is there any danger of the processing being applied when it shouldn't?

This guy wanted to know if he should have the setting off? I figure maybe sports aren't filmed at 24 fps so there wouldn't be any 3:2 pulldown flag, or processing applied, but I'm not sure. Is there ever a time when these things should be set to "Video" or "off"