“Mountainhead” Channels the Absurdity of the Tech Bro

Four tech billionaires walk into a mansion. It sounds like the setup for a punch line, but it also forms nearly the entire conceit behind “Mountainhead,” a savagely entertaining but somewhat shallow new satire written and directed by Jesse Armstrong, the creator of “Succession.” The film, which is streaming on HBO’s Max, is a sort of chamber play, its stage a modernist castle in Utah—the Mountainhead of the title—overlooking snowy peaks. The players are a quartet of friends, or, more accurately, frenemies, who resemble a mishmash of real-world Silicon Valley founders. Steve Carell plays Randall Garrett, the group’s Peter Thiel-esque mentor who, not unlike the late Steve Jobs, has cancer that his doctor tells him is incurable.