Zac Efron is "in a great place" after completing rehab.
The 'That Awkward Moment' star finished a stint in rehab last year for alleged cocaine and alcohol abuse, and says he's never felt better since beating his demons.
Zac - who was recently seen wearing a blue Alcoholics Anonymous (AA) chip, marking six months of sobriety - told a press conference in New York: "I'm so happy. I feel like I'm in a great place and I'm glad that I'm really here to share this moment with everybody and be present for all of it.
"It was an interesting year. I learned so many things. So much. The best part of it was being able to reflect upon that experience and realize how much I have learned about myself and the kind of man I want to be."
Zac, 26 added he felt great about reuniting with his friends, Michael B. Jordan and Miles Teller, who star alongside him in the romantic comedy to promote the film.
He said: "This movie, these guys and coming back to it and to New York - just being here in this moment, it just kind of exemplifies it. I couldn't be happier. I'm in a great place."
As well as completing rehab, Zac, also had to take time to heal after suffering a broken jaw - which resulted in him having to have his mouth wired shut - after he accidentally slipped and fell on his face outside his home in Los Angeles last November.