Stephen Graham off to 'London'

His last role was Baby Face Nelson in 'Public Enemies'

Stephen Graham is taking a stroll down "London Boulevard."

The British actor, who plays gangster Baby Face Nelson in the John Dillinger drama "Public Enemies," will carry a gun for the other side in "London."

Graham will play the lead detective in the GK Films picture. William Monahan is making his directorial debut with "London," which revolves around a romance between a former con (Colin Farrell) and an actress (Keira Knightley).

Graham, repped by Inde¬pendent Talent Group and Kritzer Levine Wilkins, also is playing a gangster in another project: He portrays Al Capone in the Atlantic City casino pilot "Boardwalk Empire" for HBO.

Graham appears in the BBC miniseries "The Occupation" and next appears on the big screen in the Lionsgate period fantasy "Season of the Witch."