Ellen E Jones and Mark Kermode celebrate 40 years of Film4 with a quartet of famous film-makers who have been part of its rich history and legacy.

Founded in 1982, Film4 soon became an iconic and vital voice in British film. It has fostered a reputation for producing gritty, diverse stories from unheard voices as well as championing the more leftfield and experimental side of British cinema.

Ellen looks at Film4's origins in conversation with Stephen Frears who directed the very first Film4 film, Walter. Walter stars Sir Ian McKellen as a young man with learning difficulties and the film documents his struggles in Margaret Thatcher's Britain. Frears continued to explore life in 80's Britain in the now iconic and still ground-breaking My Beautiful Laundrette. Stephen and Ellen discuss what the film meant at the time and why it remains relevant.

Mark talks to Gurinder Chadha. In 1993 her Film4 produced debut, Bhaji on the Beach, became the first full-length feature film made by a British Asian Woman. Gurinder and Mark discuss the importance of Film4 in championing minorities and what the British film industry was like before and after Film4's emergence.

Ellen chats with Ben Wheatley about Film4's response to his irreverent 2011 folk horror film Kill List as well as the multi-platform release of 2013's A Field in England. They talk about how Film4 has always made space for the more uncommercial and experimental side of British cinema.

Finally, Mark talks to Clio Barnard about her 2013 Film4 debut, The Selfish Giant. A social realist adaptation of an Oscar Wilde story, Clio discusses how Film4 supported her as an artist and allowed her to share her unique and touching tale.

This week's Viewing Note is courtesy of former Film4 head and veteran producer, Paul Webster.

Producer: Hester Cant