Efron not keen on risky roles

Zac Efron is not willing to take on risky roles.

The 'High School Musical' star cites 'Shutter Island' actor Leonardo DiCaprio as his idol but admitted he would be unwilling to take on risky parts - such as a teen heroin addict in 'The Basketball Diaries' and a gay French poet in 'Total Eclipse' - like Leonardo did.