Video games are different. For the most part there is no motion blur so your brain perceives juddering. Film doesn't have this problem.
The point would be to remove the need for disgusting amounts of motion blur in films.
At Broadcast Asia 2008, I saw a football game displayed on a multi-HD resolution screen (I think 12x HD, but not sure) @60fps. I should say it took the audience to the game. You can tell individual faces in a packed pavilion. Its all moving in the right direction - more fun.
You don't want very high frame rates in movies, unless you're going for a home video look.