Daniel Radcliffe read Martin McDonagh’s much-lauded play The Cripple Of Inishmaan and knew he had to do it.

Set in 1934, it is about a young man with a withered hand and foot who lives off the west coast of Ireland, and is known by the locals as ‘Cripple Billy’. 

‘It’s got pathos, heartbreak — and it’s very funny,’ said Daniel.

On the neighbouring Isle of Arran, an American film-maker is shooting a documentary and Billy feels this is his chance to escape.