Ex Machina + Assassins Creed costume designer Sammy Sheldon Differ meets Utopia + Downton Abbey colourist Aiden Farrell to talk all things colour and costume.

The look of film and TV involves the vision of loads of people - at different ends of the process are the costume designer and the colourist, who help create a complex and subtle palette of colour for a film. They never meet, until now.