“Wall Street: Money Never Sleeps” proved worth its weight in box office gold, netting a whopping $19 million in its first weekend out, industry data showed Sunday. Director Oliver Stone's sequel to his 1987 hit “Wall Street” sees Michael Douglas reprising his role as investment shark Gordon Gekko, famous for saying that “greed is good.” The movie co-stars Josh Brolin and the up-and-coming Shia LaBeouf. “Wall Street” was followed by another shining premiere: “Legend of the Guardians,” an animated owl drama, that brought in $16.3 million out of the gate, box office tracker Exhibitor Relations said. In third place was “The Town,” Ben Affleck's fast-paced bank heist flick set in his hometown of Boston. The movie, in its second week out, had a very solid 16-million