A new teaser for the Australian survival thriller film, Gold, dropped recently, featuring a rough, gritty version of the High School Musical alum. In the clip, the 34-year-old actor is barely recognisable as he's seen covered in dirt and injuries and sporting a scruffy beard and tattered clothes, surrounded by a vast desert landscape. Efron posted the teaser on his Instagram and got candid about his time on set. "Filming this was brutal but I love it," he wrote. "So proud of everyone involved and thank you to everyone who has watched so far." According to the film's synopsis, Efron plays a desert drifter who stumbles across a giant gold nugget, as his partner agrees to leave to find excavation equipment, his character stays to guard the gold and in doing so, endures a series of hardships which test his mental and physical endurance. Although The Greatest Showman actor's resume is filled with romantic comedies, Hayes told that it was the challenge of the intense role that drew him to cast Efron.