Actor Christian Bale and director Ridley Scott have defended the casting of white actors as Egyptians in the main roles of biblical film Exodus: Gods And Kings.

Scott implied investors liked big-name actors, not local international stars, saying he had to assemble the best possible cast for a film "on a budget of this scale".

And he told those trying to boycott the film: "I say, get a life."

Exodus: Gods and Kings, which had its New York premiere early today, cost an estimated $140million (£88m).

Bale, who plays Moses, said he understood the frustration, but also saw the business side of getting films made.

He said audiences could play a part in helping more international actors win roles in major movies and if people started supporting the films, "financiers in the market will follow".