Actress Nicole Kidman, known for her glamorous avatar, was unrecognisable when she came on the set of her new movie, "The Family Fang", sporting a darker, low-maintenance hairdo.

Dressed in a blue jeans and a white top, she looked casual on the set of the movie here July 15, reports huffingtonpost.com.

A big screen adaptation of Kevin Wilson's novel of the same name, the film stars Kidman and Jason Bateman as siblings who grew up in a family of performance artists and must search for their famous parents when they inexplicably disappear.

Actor Christopher Walken portrays their father, Caleb Fang.

Meanwhile, Kidman was a head turner at the Celebrate Life Ball in Melbourne.