In honor of Grace VanderWaal’s 16th birthday today, Disney+ has released the trailer, first look photos and key art for Stargirl, a tender and offbeat coming-of-age story starring the singer/songwriter in her film debut. Directed by Julia Hart, the film also stars Graham Verchere, Karan Brar, Maximiliano Hernandez, Darby Stanchfield and Giancarlo Esposito. Stargirl premieres on Disney+ on March 13th. Stargirl from Disney+ is a tender and offbeat coming-of-age story based on the critically-acclaimed, New York Times’ best-selling young adult novel about an unassuming high schooler who finds himself inexplicably drawn to …