Brittany Murphy’s increasingly oddball behaviour is reportedly not endearing the puffed-up actress to the crew on her latest movie.

According to insiders on the set of Across The Hall, Brittany has been driving everyone to distraction with her bizarre demands.

On-set spies tell PageSix.com: "She's extremely difficult. When she gets to the set, it comes to a grinding halt. She's so hot and cold, you never know."

Among her alleged list of requirements includes diagonally cut peanut butter and jelly sandwiches with the crusts removed.

Explains the source: "She needs one every hour. It's painstaking - her assistant takes about a half an hour making each one."

Producers are also said to be unhappy that Brittany's tubby hubby Simon Monjack is a constant presence on set, so much so that they have called a meeting to discuss how to deal with him.