In 2006, the world was introduced to Glen Hansard and Marketa Irglova by way of a delightful little film called 'Once.' In the film, the two musicians fell in love. In real life, the two musicians also fell in love, but -- like their onscreen characters -- it wasn't meant to be. The difference is that Hansard and Irglova had a tumultuous breakup, which was caught on film by Chris Dapkins, Nick August-Perna and Carlo Mirabella-Davis for their new documentary 'The Swell Season.' Moviefone spoke to Dapkins about the strained relationship between Hansard and Irglova -- as well as the slightly dysfunctional relationship that those two have with fame. Dapkins also explains why you may not like 'The Swell Season' if you really enjoyed 'Once.'