Watch Full Movie Online. Commissioned by the BBC & BFI, CLASH is a short experimental documentary critiquing Britain's obsession with period dramas, and how they erase the diverse reality of Britain today. This film - part parody, part candid interview - is a response to Humphrey Jennings' 1942 'LISTEN TO BRITAIN', a documentary used to propel a myth of national unity. CLASH, through the perspectives of underrepresented queer people of colour, critiques the myths we still tell ourselves on screen. Through candid interviews and staged period-drama sequences with our subjects - involving a hobby horse race in East London - our film explores the issues surrounding nostalgic heritage cinema, and how it erases the diverse landscape of Britain today.