The 2010 remake of Clash of the Titans was juvenile junk. If you ignored the miserable, eye-gouging 3D, though, it made for a fun Saturday matinee. Also, it turned a profit. So, naturally, everybody climbs back in the chariot for this amped-up sequel. Aussie beefcake Sam Worthington returns as heroic Perseus, battling still-snippy Hades (Ralph Fiennes) and his horde of CGI monsters. 99 minutes PG-13.