Loophole on AllMovie

This caper film stars Martin Sheen as Stephen Booker, an unemployed American architect in London who needs to jump-start his finances. Enter criminal mastermind Mike Daniels (Albert Finney), who gathers a group of thieves together to rob an impregnable London bank of millions by coming in through the sewers. Needing the money and the chance, Stephen, when offered, willingly joins the gang in their robbery attempt.