Why would the upcoming movie version of The Smurfs hire Katy Perry to voice Smurfette when the singer has never acted in a movie before? Perhaps to sell one of the movie's meta jokes with some extra oomph. Vulture hears that at one point in the July 29 film, Smurfette admits, "I smurfed a girl ... and I liked it." But wait, isn't Smurfette the only girl Smurf in existence? Did she smurf her own reflection, or isn't that something Vanity Smurf would be more likely to do? So many questions!