He can seduce Marilyn Monroe, but can he sing?
Tom Hooper, who picked up an Oscar this year for "The King's Speech," will direct the film from a script by William Nicholson.
Redmayne has had key supporting roles in films such as "The Good Shepherd" and "The Other Boleyn Girl." He also starred in the Starz mini-series "The Pillars of the Earth."
Deadline first reported Redmayne's casting.