Mona Lisa (1986)

After getting out of prison, George (Bob Hoskins) looks for a job, but his time in prison has reduced his stature in the criminal underworld. The only job he can find is to be a driver for beautiful, high-priced call girl Simone (Cathy Tyson), with whom he forms an at first grudging, and then a real, affection. But Simone's playing a dangerous game, and when George agrees to help her, they both end up in deep trouble with Mortwell (Sir Michael Caine), the local kingpin.