Looks like the start of another superhero franchise. Captain America: The First Avenger, starring Chris Evans, topped the domestic box office with an estimated $65.8 million over the weekend. Harry Potter and the Deathly Hallows Part 2 dropped to number two with $48.1 million, falling 72 percent from its mammoth debut last weekend. The Justin Timberlake and Mila Kunis comedy Friends With Benefits came in third with a $34-million weekend opening.
