Their Oscar-winning film Once (2006) made hearts swell, but it wasn't until the documentary about Glen Hansard and Markéta Irglová's subsequent world tour, The Swell Season (2011), that these Irish indie rockers swelled anything else. The reason for this phenomenon is a scene in the documentary where Markéta casually strips off her dress for a full-frontal frolic in the surf. It really is The Swell Season!