Perth police seek theatre sex predator who targeted young girl

A 14-year-old girl has been indecently assaulted in a Perth cinema, police say.

The teenager was watching a film in Cannington at 1.30pm on December 20 when a man seated nearby allegedly leant over and tried to talk to her before grabbing her.

He left the theatre before the credits began to roll.

Police have released a photo of a man they believe may be able to help with their investigation.

He is described as being in his early to late 50's with fair skin, short black hair, a solid build and about 170cm tall.