On October 15th 1966, the Roundhouse in north London hosted its first gig - the launch of radical newspaper International Times. The audience included Paul McCartney and Marianne Faithfull, along with 3,000 others trying desperately to get in. The result was a glorious shambles. Since then, virtually every big name in rock and alternative theatre has played there. Today it's as vibrant as ever, continuing to attract big names and full houses and running an array of outreach and youth programmes enabling young people to express themselves in the arts. Arena tells the tragicomic rollercoaster story of a unique venue.