"Lively and engrossing. The tale of the most scrutinized painting of all time."
— Bobby LePire, Film Threat
"Really, 'The Lost Leonardo' is a detective story. Like any good detective story, it's also a morality tale."
— Mark Feeney, Boston Globe
"Andreas Koefoed paints a telling portrait about the art world, illustrating the deception, the pretense and the secret billionaire buyers at the apex of some shady shenanigans."
— Randy Myers, San Jose Mercury News
"Among other things, this picture freshly demonstrates that a conventionally structured documentary can pack the fascination and wallop of an expertly executed fictional thriller."
— Glenn Kenny, New York Times
"What stayed with me after I left the movie was a reaffirmation of how great art, in all its many manifestations, has the power to move us and change our way of seeing, even our lives."
— Peter Rainer, Christian Science Monitor
"'The Lost Leonardo' crystallizes how remarkable it is that something a random guy found in New Orleans could eventually become a smokescreen for a foreign despot's crimes against humanity."
— David Ehrlich, indieWire
"It's never pedantic. It plays like a thriller, like a heist. While I was watching, I could totally imagine that someone is going to pick up the rights to this and turn it into a feature film, because it's so gripping and thrilling."
— Christy Lemire, FilmWeek (KPCC - NPR Los Angeles)
"As thrilling and fun to watch as any fictional crime narrative, The Lost Leonardo is also a straightforward and unflinching indictment of the way power is brokered in our modern-day society—behind the scenes, out of reach, under the veneer of beauty and esteem."
— Artemis Lin, The Film Stage
"'The Lost Leonardo' is the first art-world documentary I've seen that captures what art becomes once it goes through the looking glass of greed: not just a commodity, but a way of transferring and manipulating power. It’s enough to make the Mona Lisa stop smiling."
— Owen Gleiberman, Variety