Visitors to this year's Turner Prize 2014 exhibition will find themselves spending much of their time watching films in semi-darkness. The show, unveiled at Tate Britain on Monday, features several film works - and slide shows projected onto walls.

This year's artist nominees are Duncan Campbell, Ciara Phillips, James Richards and Tris Vonna-Michell. Between them, they employ audio, video, craft and design - but there is no use of traditional painting or sculpture.