Another dwarf group, The Little People of America, said the entertainment industry should be actively casting little people.

A spokesman said, "This means both casting people with dwarfism as characters that were specifically written to be played by little people ... and other roles that would be open to people of short stature."

In the film, the dwarfs are played by actors Ian McShane, Bob Hoskins, Toby Jones, Eddie Marsan, Brian Gleeson, Ray Winstone, Nick Frost and Johnny Harris.

Director Rupert Sanders used camera angles and special effects to make them appear like dwarfs, including digitally inserting their faces on to the bodies of shorter people.

Go to The Sun for more.