Miller "too thin" for Crowe's Robin Hood

Rex Features

Russell Crowe allegedly forced Sienna Miller out of new Robin Hood movie Nottingham because he wants a curvier co-star.

According to the New York Post, Crowe is still carrying weight from his previous film role and was worried how his scenes with the svelte Miller, who was to play Maid Marian, would come across.

An insider said: "It is a mess. Russell never lost the weight he put on for Body Of Lies - and so the love scenes between him and Sienna would have been laughable. He's so old and fat and she's so young and gorgeous. It's just... gross."

The source added that producers are now "looking for an older, plumper actress to play the role so [Crowe] doesn't look like a paunchy grandpa. Someone in her late 30s or early 40s".

Nottingham, which casts Crowe as both Robin Hood and his Sheriff nemesis, has been plagued by pre-production problems - including rumours of friction between Crowe and director Ridley Scott and filming delays.