I bought my 2 year old headphones from gearforkidz.com they were about $20 and fit great, so much nicer that trying to keep adult sized ones on her.
I think, if it isn't too late, that letting your kids think the only way they can hear the movie is through headphones is a wonderful idea.
I am ashamed to say I was a part of that thread about headphones that got way outta hand...I suggest you convince your kids to use them, if at all possible. I think there are far louder and worse noises on the plane, but quite a few DISers do NOT agree.
Keeping an active toddler happy on a plane can be a challenge, but don't worry...you'll get through it. A movie is one of many things you can try. Does he have a favorite show or character? Make sure those are the dvds you take. I also take plenty of snacks, drinks, a magna doodle, paper and crayons...all sorts of little quiet things to keep my DD busy.
I also try to avoid letting her get up to go potty too soon, because once she realizes that she can get up and move around, it is more difficult to stop. (maybe I am mean, but I put a pullup on her even though she is potty trained. I once had pee all over her clothes, the sit n stroll and on myself when I picked her up, out of the seat--yucky).
Kids fly all the time, some fare better than others, but they all get to where they are going ( I assume).
Enjoy Disney
