The Eiger Sanction (1975)

The Eiger Sanction is a 1975 action thriller film based on the 1972 novel of the same name by Trevanian. It stars Clint Eastwood as an ex-OSS agent and art professor, Jonathan Hemlock, who is coerced into participating in a dangerous mission to assassinate a fellow climber during a perilous climb up the Eiger mountain in Switzerland. The film blends elements of espionage, art, and mountaineering, as Hemlock navigates the complex world of assassins and secret agents while confronting his own past.