Jul 25, · James Franco took to Instagram to jokingly congratulate his brother, Dave, on his relationship with "Neighbors" co-star, Zac Efron. The "Pineapple Express" star shared the following image, which appeared to be a screenshot of a HollywoodLife article announcing that his brother and Efron were ukrainianblog.info E! When you think of Zac Efron, one word automatically comes to mind: hot! Zac Efron is one of the most in-demand actors in Hollywood. Starring in films like We Are Your Friends, 17 Again, Neighbors, and That Awkward Moment, Efron is known mostly for his talent, charisma, and of course, chiseled body. Zac Efron's interview with The Advocate is a chance for the actor to address gay rumors that date all the way back to his High School Musical days. While some have balked when thrown to the gossip pit, this guys insists, "It’s very flattering.".