What If TRAILER 1 (2014) - Adam Driver, Daniel Radcliffe Romantic Comedy HD. In Theaters this August. WHAT IF is the story of medical school dropout Wallace (Daniel Radcliffe), who's been repeatedly burned by bad relationships. So while everyone around him, including his roommate Allan (Adam Driver) seems to be finding the perfect partner (Mackenzie Davis), Wallace decides to put his love life on hold. It is then that he meets Chantry (Zoe Kazan) an animator who lives with her longtime boyfriend Ben (Rafe Spall). Wallace and Chantry form an instant connection, striking up a close friendship. Still, there is no denying the chemistry between them, leading the pair to wonder, what if the love of your life is actually your best friend. The ensemble romantic comedy costars Megan Park and Oona Chaplin. Director: Michael Dowse. Writer: Elan Mastai. Producers: David Gross, Jesse Shapira, Jeff Arkuss, Macdara Kelleher & Andre Rouleau. Executive Producers: Hartley Gorenstein, Michael Dowse, Bryan Gliserman, Mark Costa, Ford Oelman, Marc Stephenson and Patrice Theroux. Cast: Daniel Radcliffe, Zoe Kazan, Adam Driver, Rafe Spall, Megan Park, Mackenzie Davis & Oona Chaplin. Medical school dropout Wallace has been repeatedly burned by bad relationships. He meets Chantry, an animator who lives with her longtime boyfriend Ben, and they form an instant connection, striking up a close friendship. Still, there is no denying the chemistry between them, leading the pair to wonder, what if the love of your life is actually your best friend?.