Iron Man & Hulk: Heroes United

This CGI-enhanced Marvel superhero team-up flick won't disappoint viewers looking for bloodless but virtually nonstop cartoon violence. Guest villains (actually Captain America crossover enemies, as any comics geek can tell) capture the Hulk (who is articulate and intelligent here) in order to use his radioactive power in some kind of reactor. Inventor Tony Stark, aka Iron Man, flies to the rescue, but the reactor's meltdown accidentally creates a living being of pure energy, who starts draining electricity, and can also take over machines. Since Tony Stark's flying HQ is an aircraft-carrier-like weapons platform, filled with robots and backup Iron Man suits, this means...beaucoup fights, as the two heroes battle the evil entity. Although hardcore fans might want to watch, the mostly one-note mayhem here will not appeal to a wider audience. Optional, at best. (C. Cassady)