Banksy is an elusive British street artist, known for his pop-up street pieces that are often full of political and social controversy.
The stolen print, called "Trolley Hunters," is valued at $35,000, according to Newsweek. It depicts three hunters, with one aiming a spear at a group of shopping carts.
It was part of an exhibit of over 80 original Banksy pieces, curated by his former art dealer, Steve Lazarides. The entire collection is worth an estimated $35 million, according to the BBC.
The show has come under some criticism, because it has not been endorsed by Banksy.
Critics say the $35 admission fee goes against Banksy’s anti-capitalist message.
The show's publicist said the surveillance video is real and not a publicity stunt, the CBC reports.
The exhibit in Toronto is scheduled to run until July 11.