Zac Efron's island-hopping fans

Zac Efron's fans are so obsessed with him they even travelled to an island to see him.

He said: "I was looking forward to that seclusion. From what I heard it was a pretty quiet place and there weren't a lot of people there. But they found it. But I felt pretty welcome."

The movie is something of a departure for Zac - who is famous for playing clean-cut jock Troy Bolton in the hit 'High School Musical' films - admits he was looking for something a bit "riskier" when he accepted the part.

Zac - who plays a teenage student who, by luck, gets to work with a young Orson Welles, the acclaimed American writer and director, in the coming-of-age drama - said: "I was looking for that opportunity, something fresh."

Zac wasn't concerned his large, mostly teen fan base, wouldn't have heard of Orson Welles.

He said: "Perhaps the fans that don't know about Orson maybe have more of an opinion now when they study this stuff at school... some insight into the early life of this American icon."