Enjoy your goofy-faced surreptitious photobombs of two unwitting teenagers at some Montreal hookah lounge, Michael Cera. Paul Giamatti is here to show you how the adults do it. Straight up photobombing OTHER CELEBRITIES. "Damnnnnnnn." --Someone in 1997 Obviously this was taken at some fancy hot shot Hollywood party for Sideways, which came out before Michael Cera was even BORN. I'm ...