Captain Jack Sparrow (Johnny Depp) already seems permanently young, but in "Pirates of the Caribbean: On Stranger Tides," he's hunting for the Fountain of Youth. Beautiful Angelica (Penelope Cruz) is along for the ride, and there's a confrontation with Blackbeard (Ian McShane) looming. This is the fourth movie in the "Pirates" series and the first to be released in 3D. Whoa, is that a cannonball coming straight at you? (Opens May 20.)