Cate Blanchett stars in Where'd You Go Bernadette with a weird wig.

The trailer for the new movie has dropped showing the star paying a normal woman donning an intense bob.

She's pretty average, then becomes far more interesting when she disappears.

Her 15-year-old daughter (Emma Nelson) is left with no choice but to go all Nancy drew and investigate.

Blanchett stars in Richard Linklater's adaptation of the Maria Semple novel of the same name.

It tells the story of the sudden disappearance of Seattle woman Bernadette Fox.

The film also stars Billy Crudup, Kristen Wiig, Emma Nelson, James Urbaniak, Judy Greer, Troian Bellisario, Zoe Chao, and Laurence Fishburne.

The movie is due out in March next year.