Subscribe to Talk of Fame: *****br br These Harley Quinn cosplayers at Comic-Con look the part and might convincingly battle Batman with the Joker, but how well do they know Harley?br br Play along, and tell us how well you 'Know Your Cos'!br *****br br Host: Albert Lawrencebr Camera: Nathan Stonebr *****br br For more Talk of Fame, visit:br Website: Twitter: