1. the end of the movie doesnt leave much for a sequel in my mind, but the main characters are signed on for a second movie so you never know
2. their were a hell of alot battles/exposions/special fx prob the best special fx ive ever seen in a movie. the robots blend in so well with the actors and the battles between the robots are awesome
3. and yes
i would def recommend everyone to go see whether or not you watched the show or first movie.