Local fans of “Fifty Shades of Grey,” E.L. James’ erotic best-seller, say they’re ready for their big-screen rendezvous with Christian Grey. “He’s the ultimate bad boy,” said Tonya Lorenz of Wichita, who read the novel a few summers ago and plans to see the movie with nearly two dozen girlfriends when it officially opens Friday. “He’s successful, he’s ambitious, he’s powerful, and yet he’s kind of emotionally disturbed,” she said. “In a weird sort of way, I think it does show that love can heal all wounds.” Not long after tickets to “Fifty Shades of Grey” went on sale last month, it became the fastest-selling R-rated film in Fandango’s history, as fans of the novel planned for a steamy Valentine’s Day weekend. The film opens in Wichita on Friday, with early shows at some theaters Thursday.