In 2008, Glen Hansard and Marketa Irglova captivated audiences and earned two Academy Awards for their musical collaboration in the film Once, which reached $10 million at the box office and grew their popularity and fan base by tens of thousands in North America and throughout the world. As their fictional romance blurred with reality, they fell in love, recorded an album, and embarked on a world tour. Fueled by two years of exhilaration, performance, and psychological turmoil, The Swell Season is much more than a music documentary. It is a volatile and intimate portrait of a romance that fractures in the face of life on the road and personal tragedy. As Glen and Marketa's relationship unhinges, ultimately music prevails as their enduring connection. With incredible performances from around the world and an intimate seat on Glen and Marketa's tour, The Swell Season will resonate with film fans and music fans alike.