Rami Malek is a mad-as-hell secret-agent geek brainiac in a watchable but frictionless revenge film that pours a lot of other movies into the blender.

As star of “The Amateur,” in theaters Friday, Rami Malek gets to be both skittish nerd and coolly competent angel of death. He’s the homebody and perpetual rule-follower who in grief-stricken madness decides to blackmail his bosses and go on an international killing spree to get the people responsible for her death.