Proving himself to be perhaps the only human capable of resisting the wiles of The Bieber, director Davis Guggenheim (An Inconvenient Truth) has dropped out of the 3-D Bieber biopic film he had reportedly been set to helm. The official word is that Guggenheim decided he would be too busy promoting his upcoming documentary Waiting for Superman, but the real reason is probably the ribbing he got after Monday’s announcement from his director buddies during poker night. [Deadline]