Efron scared by ghost on 'Orson Welles'

High School Musical star Zac Efron has claimed that he saw a ghost on the set of Me and Orson Welles on the Isle of Man.

The actor and co-star Claire Danes told producers that they witnessed a "supernatural" being during a scene at the Gaiety Theatre, reports The Sun.

Efron and Danes said they saw a ghostly figure outside a theatre window. The movie's crew have reportedly been joking with the stars and teasing them about their fears.

The Richard Linklater-directed movie about an Orson Welles production of Julias Caesar is expected to be released in 2009.