How to make my video sync to my iPhone 4 in iTunes?

I have a video in my iTunes library on my computer, and when I try syncing it under Movies to my iPhone, it doesn't work.

Wow - doesn't work. That's helpful. I don't know what "doesn't work" means - maybe the videos transfer and don't play, maybe they don't transfer at all.

I'm going to assume they don't transfer. Instead of syncing, use manual management and just drag them from the iTunes window to the iPhone 4 tab on sidebar.MM works on all Apple devices. I['ve used it on iPhone 4 & 5.