If it's true that there's an 8-year-old boy inside every man, "Transformers" is just the ticket to bring the kid out. Big, loud and full of testosterone-fueled car fantasies, Michael Bay's actioner hits a new peak for CGI work, showcasing spectacular chases and animated transformation sequences seamlessly blended into live-action surroundings. There's no longer any question whether special effects can be made more realistic: The issue is whether disposable actors can be trained to play better with bluescreens. Paramount/DreamWorks' summer tentpole is certain to do gangbusters biz, while the sequel-screaming ending and the usual spinoffs should send ancillary through the roof.