After flexing his dramatic muscles in Lee Daniels’ “The Paperboy” and Ramin Bahrani’s “At Any Price,” Zac Efron has signed on to star in writer-director Tom Gormican’s romantic comedy “Are We Officially Dating?”Treehouse Pictures’ Justin Nappi and Kevin Turen are producing the indie pic with Scott Aversano and Andrew O’Connor, while Michael Simkin, Jason Barrett, and Manu Gargi will exec produce. QED International is handling international sales. Pic will start production this November in New York City. Gormican’s script, which appeared on the 2010 Black List, follows three friends in Manhattan who make a pact to remain single just as they each start to fall in love. “We strongly believe in the global appeal of this project and we’re excited to work with the team at Treehouse Pictures to bring it to market in Toronto,” said QED Intl. CEO Bill Block. “Are We Officially Dating? is an excellent addition to QED’s growing sales slate, and underscores our commitment to commercial, filmmaker-driven product.” Efron is currently in Venice, where Sony Pictures Classics just preemed Treehouse’s “At Any Price,” a drama that co-stars Dennis Quaid. He will be in Toronto to support “The Paperboy,” and also appears in Josh Radnor’s “Liberal Arts,” which IFC Films opens next month. He’s repped by CAA, Alchemy Entertainment and attorney Patty Felker. Gormican recently sold “Bad Form” to WB and “Save the Date” to Sony, with Neal Moritz producing. He’s repped by WME and 3 Arts Entertainment.