The Eiger Sanction (1975)

Appalling thriller directed by and starring Clint Eastwood, who ought to have known better. He stars as a hitman, who's also a lecturer, who’s also a climber, who's also a ladies’ man, who’s also an art collector…

There’s no tension or drama. But there’s plenty of sexism, homophobia and racism. There's also a clumsy sub-James Bond plot that doesn’t make sense, and a total lack of characterisation. Even the celebrated climbing sequences end up being dull. 

Clint is usually reliable, so you can only wonder how this ended up being such a turkey.