Due for release on 17 December this year, Tron Legacy is the sequel to the influence 1982 movie Tron, notable for its early use of 3D graphics (although a large amount of the supposed 3D imagery was actually traditional rotoscoped animation). Tron Legacy picks up the story thirty years from the original movie and sees Sam Flynn, son of the original movie's main character Kevin, go looking for his father in the mainframe world.
Jeff Bridges and Bruce Boxleitner reprise their roles as Kevin Flynn and Alan Bradley in the movie, which also features a soundtrack from French electronic musicians Daft Punk and visuals based on updated versions of the original film's designs (including a new riff on the famous light-cycle sequence).
I remember seeing the original movie and being impressed by its look and atmosphere. The trailer for the sequel seems to promise a similarly atmospheric adventure, with a reassuring lack of explosions or rock music. After Avatar, this might be the next film whose visuals are best appreciated in 3D.