Banksy's art shred 'every time' in rehearsals, but malfunctioned at Sotheby's

In a video released Wednesday, Banksy revealed the 'Girl With Balloon' shredding stunt malfunctioned at Sotheby's, noting that it 'worked every time' in rehearsals.
Also revealed: the mechanisms inside the frame that supposedly shredded the art were more complicated than the originally shown X-acto blades.

Its new owner, a woman in good standing with the auction house, paid £1.04m for the pre-shredded work and will keep it. The ribboned piece is now called, 'Love Is in the Bin.'
Previously: Myth-busting the self-shredding Banksy painting