Okay I know it's way too late to have not seen it yet, but I'm waiting to go with a bunch of people. I also realize there is a thread almost exactly like this but that's for post movie discussion, this is for pre movie priming.
I have a question or two and you're allowed to answer with all the comic book spoilers you want, just no movie spoilers, because that's what I haven't seen.
1. How true is it that much of the movie I'm about to see is based on The Ultimates #1-13?
2. What other comic book material gets used in the movie?
3. Will it be possible for a sequel to follow the comics more or less?