good call on the vsync! it's true, most computer screens are 60hz, and 60 fps is more than enough for animation
in movies (although interlaced), its ~25 fps!
This isn't quite correct - movies can get away with less because each frame is somewhat blurred in with the previous and next frames, which makes frame transition much smoother. Try it out - next time you watch a movie, pause it at a random point with enough movement and watch how blurry it is. 25 fps (and even 30, for that matter) is most definitely not enough for video games to appear smooth without unrealistic amounts of motion blur. 60 fps is still far from perfect, as well, but it's satisfactory for most users. Motion blur and good camera handling can help a lot, though. This is really off-topic, though, so I'll stop here.