Dinner rotation is assigned once you are on board. If Tritons is your 1st night then you are "expected" to dress up. DH wore a jacket to Tritons on our 1st trip. He was miserable. 2nd trip he wore long sleeved dress shirt w/ tie and slacks. He fit in fine and felt much better. Honestly as long as you aren't dressed in shorts or a tank top, they won't care what you're wearing. It is "requested" that you dress up. It's not mandatory. This is highly debated on the boards but personally, I couldn't care less. I would love to meet each and every one of you but at the end of the cruise I don't have to have your approval to go home and sleep comfortably in my bed. LOL I detest the thought of dressing up on vacation. I wear a pressed uniform everday to work with ribbons, badges and polished shoes. Vacation to me is having to get away from that.
Scottie, it's just as well because you can only LOOK at SEGWAY at Epcot, not use it. But they do give you a lot of interesting information.
Jeleann, they will only be playing movies that have already been released. Treasure Planet won't play because as you've already stated, it comes out in November. (I was hoping too)