Can 'star studded' M&S ad boost sales?

High Street retailer Marks and Spencer has reported a fall in sales of non-food items in the first half of the year.

Like-for-like sales in non-food items were down 1.5% compared with the same period last year. The retailer launched its autumn/winter ranges in September.

Food sales were up 2.5%, while pre-tax profits came in at £280.6m - virtually unchanged from a year ago.

M&S said it remained cautious for the rest of 2013.

The BBC Emma Simpson examines the chain's Christmas advert and looks to Marks and Spencer's future in 2014.