Filmed over three years with unprecedented access, this documentary captures the return from California of England's favourite living artist.

As Hockney approaches the age of 70, he re-invents his painting fromscratch, working through the seasons and in all weathers out in the Yorkshire countryside, ending up with the largest picture ever made outdoors. It is at once the story of an unusual homecoming and also an intimate portrait of what inspires Hockney as his time runs out.

William Eggleston is one of the most influential and original photographers alive today.

A Mississippi aristocrat with a fondness for guns, drink and women, he dragged colour into the world of art photography. Reviled in the 1970s, he is now considered a legend whose unique visual style has influenced generations of photographers and filmmakers.

Imagine shows the normally shy and elusive Eggleston at work - taking photographs on the road, in and around his home town of Memphis.