Daniel Radcliffe left TV watchers fascinated after showing off a succession of stunts with his tongue.
The Harry Potter and the Order of the Phoenix actor discovered he could twist it into three distinctive forms, creating a number of weird folds.
Radcliffe, 22, was being talked to advertise his latest movie The Woman in Black, where he plays a bereaved young solicitor with a three-year-old son.
The movie is based on a novel by Susan Hill that was adapted into a winning West End play, still running in London
