LOS ANGELES (Reuters) - Five years after becoming the youngest female to win "American Idol," Jordin Sparks restarts her career in a new movie role that the 22-year-old sees as remarkably close to her own life singing her way to fame. Just like her real-life parents, Sparks' onscreen mother Whitney Houston cheered and coached her, off camera, as she rebounded from career changes and transitioned from music to the movie "Sparkles," which hits theaters on Friday. ...