'Neighbors' Zac Efron is no longer close with ex Vanessa Hudgens
"We were having trouble finding somewhere -- a lot of places were closed -- and the car ran out of gas off the 110. It was ridiculous. We had to pull over, and I called Uber," Efron says. "A homeless guy, or vagrant, tapped on the driver's-side window. Before I knew it, he [the friend] was out of the car, and they started fighting. I saw that [the homeless man] was carrying some sort of a knife, or shank, and I got out of the car to disarm him. At some point, he dropped the knife, and I got hit pretty hard in the face -- and almost instantly the police were there to break up the fight."
Efron also opens up about his decision to join Alcoholics Anonymous.
"I was drinking a lot, way too much. It was never one specific thing. I mean, you're in your 20s, single, going through life in Hollywood, you know? Everything is thrown at you. I wouldn't take anything back; I needed to learn everything I did. But it was an interesting journey, to say the least," he says. "I just started going [to AA]. And I think it's changed my life. I'm much more comfortable in my own skin. Things are so much easier now. It's a never-ending struggle."
"I'm constantly searching for characters that are about betterment of self and betterment of others," Efron notes. "And I'm searching for those parts because those are the ones that make me happy. They're the ones that fulfill me personally."