She's totally unrecognizable!

Nicole Kidman looked like a completely different person on the set of her latest flick The Family Fang when she donned a brown/reddish wig, grey hoodie, black t-shirt and jeans.

The 47-year-old actress stars as Annie Fang in the film based on the 2011 best-selling novel by Kevin Wilson about a brother and sister searching for their world-famous parents.

Fellow Oscar winner Christopher Walken also stars in the film as he plays their long lost father Caleb in the Jason Bateman-directed film which wraps on August 21.

Sounds like an interesting movie!