Time Out says
If you like your animated family movies noisy, imaginative and seriously silly, this one’s for you
From sidekicks to center-stage superstars, the Minions have busted out of the Despicable Me franchise and gone rogue in this berserk slice of semi-silent slapstick silliness. Little, yellow and essentially useless, the Minions are part of an animated tradition stretching back to the brooms in Fantasia, the Doozers in Fraggle Rock and the aliens in Toy Story. But can they carry an entire film?
The answer—surprisingly, pleasingly and resoundingly—is yes. Cut loose from the family-values slushiness of their parent franchise, the Minions are free to indulge their basest, weirdest, most randomly hilarious instincts. The plot is simple and largely irrelevant. Set before Despicable Me in the heady summer of 1968, the film follows three Minions as they search for a new evil master to serve. They fix upon Scarlett Overkill (voiced by Sandra Bullock), a female supervillain making waves in the global community of evil.
The film’s weakest aspect is, perhaps predictably, its human side: Scarlett is little more than a Cruella de Vil clone, though her feckless husband Herb (Jon Hamm) is louchely wonderful. And the geeky idea of a villainous subculture with its own fan conventions feels trite. But the action sequences are wild, the jokes relentlessly dumb-but-smart, and the sheer sense of anything-goes WTF-ness is glorious.