Wes Craven shot about two-thirds of “The Hills Have Eyes Part II” before the studio pulled the plug due to budget reasons. Then an unexpected thing happened: Craven’s “A Nightmare on Elm Street” became a box office smash. Desperate to cash in on Craven’s name, the studio behind “Hills Have Eyes Part II” now wanted the film released — even though it wasn’t finished. To compensate, Craven cut in footage from the first movie. The end result is, to be blunt, a piece of crap. It’s mostly a rehash of the first flick with a few new characters. This is probably Craven’s worst movie, although you can’t really blame him for the wobbly production.