After Twilight Saga: New Moon, Robert Pattinson's girlfriend Kristen Stewart is playing a stripper/hooker in her forthcoming drama Welcome to the Rileys, which features her alongside James Gandolfini and Melissa Leo. The movie is set to compete at the Sundance festival in January.

Sources claim that Melissa and James are versatile actors and they give fantastic performances in Welcome to the Rileys. Now Kristen also looks great in the film. She gives a good "serious" performance. "Even though Kristen has played serious roles before, ever since doing the Twilight films, she has to prove herself as an actress more, now. Apparently she does that," the E!Online quotes a source as saying.

However, the actress seems to be very happy to get after she got rave reviews for her performance in New Moon. Now, she also has The Runaway's premiering in Park City, Utah. But Kristen is all excited about Sundance because it is going to be huge for her.