Rich Ross, chairman of Walt Disney Co’s film unit, has resigned following the company’s $200m (€150m) loss on the science-fiction picture John Carter, possibly the biggest ever for a single movie.

Disney movie studio boss Rich Ross is stepping down, a month after the family entertainment giant suffered a huge loss on the movie 'John Carter'.

‘Alice in Wonderland’ has taken more than $1bn (€810m) at the international box office.