Zac Efron chatted with costar Dave Franco on the LA set of their film Townies on Friday. They both carried a beverage while Zac showed off his muscular physique under a t-shirt. Zac and Dave are reuniting to film for the upcoming comedy, which also stars Seth Rogen, after costarring in Charlie St. Cloud back in 2010. Aside from work on his latest project, Zac will also make an appearance at the upcoming MTV Movie Awards. Zac was recently named a presenter and will be passing out the golden popcorn on April 14, when Amanda Seyfried, Melissa McCarthy, and Kerry Washington will also take the stage.