I usually find I watch something part way until I feel sick about it...then I just shut the movie off.
My personal views...harry potter, no... Lord of the Rings...as soon as it gets to that evil looking freakish looking man. I have to go...it just makes me sick for some reason. It represents something like demon possession, to me. I just leave.
It's true Walt Disney does use things like fairies etc. but it's not taken as serious, because it's animation. There is something about real people acting out the part of a witch or wizard that I find a lot more offensive. It's like the difference between watching the roadrunner beat Wile E. Coyote versus watching MMA... and yes, MMA does make me sick if I watch it too much. I am really worried about what will happen if they bring this to Vancouver. Are we going to see MMA in the streets.
Those are just my opinions. If it isn't in faith and a clear conscience ...then it's wrong.