The Mackintosh Man

The Mackintosh Man is a 1973 BritishAmerican cold war spy thriller film, directed by John Huston and starring Paul Newman, Dominique Sanda and James Mason.

The judge at his trial is angered by the failure to recover the stolen diamonds from Rearden, who he believes has stashed them away somewhere, and sentences him to twenty years in jail. Rearden is shipped off to a bleak prison in the North of England. He slowly begins to blend in with the other prisoners, and is assigned to laundrywashing duties. A few days after entering he encounters Slade, a former British intelligence officer kept in high security after having been exposed as a KGB mole. He makes innocent enquiries of his fellow inmates about Slade but not a great deal is known about him.A few weeks later, he is approached by a wellspoken inmate who offers to act as a gobetween with an organisation which can spring him from the prison in exchange for a large cut of the stolen diamonds. They are used to helping prisoners escape, and have another exit planned shortly, which he can join, if he is prepared to put up the money to which he agrees. Two days later a diversion is arranged, and smoke bombs are hurled over the walls. Using the smoke screen Rearden and a fellow prisoner, who turns out to be Slade, are lifted over the walls by a cargo net and driven away at high speed. They are then drugged by injection, and taken to a secret location somewhere in wild, deserted countryside. When Slade and Rearden awake, they are told they will be kept there for a week until hunt for them dies down. ........

Source: Wikipedia