By Walt Hickey Welcome back! Reruns The top film at the U.S. box office this weekend was Star Wars: The Empire Strikes Back, grossing a total of $175,000 across 483 locations as of Saturday and projected to finish somewhere in the $400,000 to $500,000 range. The film tells the story of a waning empire’s efforts to eliminate an increasingly dire problem that is getting completely out of hand, so a totally escapist fantasy. It’s not the only classic film that’s been rolled out to drive-ins — other films that have recently grossed over a half-million domestically include