Metacritic reviews

[A] fascinating documentary.

Day's debut succeeds in part thanks to its modest scope, viewing the street-art phenomenon through an attempt to rescue one of its highly perishable creations for the public good.

Saving Banksy, in documenting the struggle of art consultant Brian Greif to preserve a single Banksy painting — one of the artist's trademark Che Guevara rats — inadvertently demonstrates that nearly every response to Banksy's work is wrong.

The road to hell, the saying goes, is paved with the best of intentions, and that is very much the case with the complex art world conundrum explored in the lively, involving documentary Saving Banksy.

I feel like Day could have made three documentaries out of his footage: one about Greif’s journey, one about street artists, and one about the art world’s old and new guard.