My older son would have tics while playing his gameboy. I could know when he was playing it because I would hear him from the other room. It was quite remarkbale, actually, because it was really the only time that he would have noticeable vocal tics. He doesn't play it anymore so I haven't thought about it.

He has played this video game DDR (Dance, Dance Revolution) which he plays on the TV screen and thye move to the steps/music on cue. It gives a great workout so the exercise is good for them. I haven't noticed any tics from this.

I don't know about the movies as he always goes with friends now that he is older but he never complained so it is not an issue.

Take care,
Tessa