It seems that Larry Mullen's having his acting debut as a movie star. Here are a few details that we have just learned:

-The name of the film is Man On The Train
-The director is Mary McGuckian, who previously directed Inconceivable
- Larry's co-stars are Donald Sutherland and Graham Greene
-The film is a re-make of a 2002 French film
-Larry apparently plays the bank robber, which means he probably has a somewhat major role

The website Pop Goes the News has a great photo slideshow of one of Larry's key scenes and additional information here. Though it may be Larry's first time acting as another person, he did appear as himself in Phil Joanau's 1999 film Entropy.