26 January 2012 Last updated at 12:29 GMT

London 2012: Hockey star causes green-screen chaos

British hockey captain Kate Walsh causes a stir as she turns up for a green-screen film shoot in London brandishing green trainers and a green hockey stick.

Walsh will skipper the side against seven other top teams at the Champions Trophy in Argentina, which begins on Saturday with live coverage of every GB game on BBC red button. Highlights will be available on the BBC Sport website for UK users.

Champions Trophy preview: GB women 'sick of bronze medals' 

FIH Champions Trophy

  • Venue: Rosario, Argentina
  • Date: 28 January-5 February 2012

Coverage: All GB matches live on BBC red button. Group stage: GB v Japan 1800 Sat 28 Jan; GB v Netherlands 1800 Sun 29 Jan; GB v China 1800 Tue 31 Jan (all times GMT). Highlights available on BBC Sport website (UK users only).