If you like your movies overly long and 90% CGI, then Transformers 3: Dark of the Moon is for you. With inside references that range from Al Pacino to Spock's famous line "The needs of the many outweigh the needs of the few," this film has more great character actors (including Leonard Nimoy as the voice of Sentinel) than any high budget movie needs.
Don't try to keep track of the various plots, but watch for the special effects. There is so much of it that Shia LaBeouf and Rosie Huntington-Whiteley (who does the film in heels) rarely do anything but run across a set or scream. And if you have a big screen and Blu-ray, so much the better.