Actor Daniel Radcliffe stars in the trailer for upcoming romantic comedy What If. Radcliffe plays a medical school dropout called Wallace who has experienced terrible relationships. He decides to take a break from dating. His roommate Allan played by Adam Driver is the complete opposite and has found his soul mate in Mackenzie Davis. During this period of no dating Wallace meets animator Chantry (Zoe Kazan) who he has incredible chemistry with. Unfortunately, she is in a relationship with long-term boyfriend Ben (Rafe Spall). Zara Kazan plays a leading character in the film along with Radcliffe. The film premieres in UK cinemas on August 22, 2014.