United States

This nicely played comedy whodunit pits semi-professional jewel thief Harkey Rollins (Gig Young) against cantankerous ex-cop Willy Calso played by Lee J. Cobb. Having heisted the ice (diamonds) of the title, Harkey and his cronies board a passenger bus from Seattle to San Diego - but they reckon without sitting next to inquisitive old charmer Willy...