Katherine Ryan has been cast to play comedy legend Joan Rivers in a new series of Sky’s Urban Myths.

Ryan will star opposite Jessica Barden as Barbra Streisand in the half-hour film that is Sue Perkins’ directorial debut.

The storyline revolves around a controversial lesbian kiss between the two stars, long before they got famous.

Sky has revealed the details of the fourth series of its Urban Myths strand, very loosely based on true stories, that comprises two other half-hour films.

In one, Robbie Coltrane will play Orson Welles at a time late in his career when the legendary actor-director ended up working at a regional television centre in Norwich.

And in another, revolves around Jimi Hendrix and George Friderick Handel sharing the same London flat – but more than 200 years apart.