Darth Lars said:
Bingowings said:

The guy being kicked could be moved to the right and behind the railing to begin with. I think that would be easier to do than to move Luke forwards.

Then the victim could be moved slightly left as a result of the kick to make it look as powerful to the victim as the throwing of the blaster is ...

I find the kick itself to look a little wimpy. Maybe when it actually hits the victim would the leg movement look better.

I wish Vaderios was here. If you import a GIF "video frames to layers" you can edit this in Photoshop, then export it back out. I tried to matte out everything and make an all new background, but I really didn't have the time/patience/skill. You'd also have to move the guy closer to Luke, re time the hit so he reacts at the right time, and redo Luke's saber that seems to disappear as it goes behind his body.