Paramount Pictures has updated the official website for the live-action Transformers movie with a contest which you can enter for a chance to have your line of dialogue spoken by Optimus Prime (Peter Cullen).
Ten winners will have their winning line voiced and recorded by Cullen, with first place becoming a line in the movie. You can enter now here!
Opening July 4, 2007, Transformers is directed by Michael Bay and stars Cullen, Shia LaBeouf, Megan Fox, Josh Duhamel, Jon Voight, Bernie Mac, Tyrese Gibson, Rachael Taylor, Amaury Nolasco, Kevin Dunn, Ronnie Sperling and Dane Cook.
Source: Paramount Pictures