Overview
The Hot Rock is a 1972 American crime comedy-drama film directed by Peter Yates from a screenplay by William Goldman, based on Donald E. Westlake's novel of the same name, which introduced his long-running John Dortmunder character. The film stars Robert Redford, George Segal, Ron Leibman, Paul Sand, Moses Gunn and Zero Mostel. It was released in the UK with the alternative title How to Steal a Diamond in Four Uneasy Lessons.
Plot
In 1971, after John Dortmunder (Redford) is released from his latest stint in prison, he is approached by his brother-in-law Andy Kelp (Segal) about another job. Dr. Amusa (Gunn) seeks a valuable gem in the Brooklyn Museum that is of great significance to his people in his country in Africa, stolen during colonial times and then re-stolen by various African nations.
Dortmunder and Kelp are joined by driver Stan Murch (Leibman) and explosives expert Allan Greenberg (Sand), concocting an elaborate plan to steal the gem. Although the scheme (and each subsequent one) is carefully plannedand keeps increasing in costsomething always goes awry, and the quartet has to steal the diamond again and again.
First off, the diamond is swallowed by Greenberg when he alone gets caught by the museum guards during the initial heist. Dortmunder, Kelp, and Murch, at the urging of Greenberg's rotund father Abe (Zero Mostel), a lawyer, help Greenberg escape from state prison, but they then find he does not have the diamond. After Greenberg tells his partners he hid the rock in the police station (after bodily evacuating it), the quartet break into the precinct jail by helicopter, but the rock is not where Greenberg hid it. Greenberg discloses that his father was the only other person who knew where it was.
From Wikipedia (CC BY-SA 4.0).