James Blake's cover of Joni Mitchell's classic A Case Of You gets an intense essay on a relationship - and the many different shades of the female protagonist - starring the luminous and compelling Rebecca Hall.

"This was an important video for James," says Seb, "Joni Mitchell went to one of his gigs at the Troubadour in LA and when they met backstage she gave his cover her blessing. A rare compliment apparently. Out of respect for her we both felt that the film should capture the honesty and emotional depth of the song.

"There's a purity to James' cover, so I wanted to do something simple and stripped back. One room, one actress and effectively one shot. It is basically a random collection of memories that are joined together to create a single experience. I wanted to be able to see the lighting and emotional transitions happen in-camera rather than cutting from one scene to the next, so it was quite challenging to shoot in a day.

"In many ways it's a mixture of theatre and cinema, so Rebecca Hall seemed to be the perfect choice given her background in both disciplines. She's an amazing actress and I knew that she would be able to create a complex and compelling character. A nod to Joni Mitchell herself."

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