Michael Cera on Rihanna slapping him in the face: “It was great”

Michael Cera has reflected on the moment Rihanna slapped him in the face for a film role.
The actor featured in Seth Rogen and Evan Goldberg’s 2013 disaster comedy This Is The End, about a group of celebrities who get stuck in James Franco‘s house after a series of catastrophic events destroy Los Angeles.
In the film, Cera plays a fictionalised version of himself and ends up on the receiving end of a hard slap from Rihanna after he smacks her in the butt.
Speaking in a recent intervi