Adam Driver and Mackenzie Davis in What If (2013)

Daniel Radcliffe and Zoe Kazan in What If (2013)

Michael Dowse, Daniel Radcliffe, and Zoe Kazan in What If (2013)

Jemima Rooper at an event for What If (2013)

Daniel Radcliffe and Jemima Rooper at an event for What If (2013)

Ben Rappaport at an event for What If (2013)

Megan Park at an event for What If (2013)

Annie Q. Riegel at an event for What If (2013)

Michael Dowse at an event for What If (2013)

Michael Dowse, Daniel Radcliffe, and Zoe Kazan at an event for What If (2013)

Mackenzie Davis at an event for What If (2013)

Daniel Radcliffe and Zoe Kazan at an event for What If (2013)

Daniel Radcliffe, Jemima Rooper, Jonathan Cherry, Megan Park, Rafe Spall, Zoe Kazan, Tommie-Amber Pirie, Rebecca Northan, Meghan Heffern, Oona Chaplin, Jordan Hayes, Adam Driver, Mackenzie Davis, and Lucius Hoyos in What If (2013)