Over the weekend, Reese Witherspoon and Nicole Kidman teamed up in rather dowdy clothes to film scenes in Los Angeles for their new HBO series, Big Little Lies.

The actresses join writer/producer David E. Kelley for dark comedic drama, which centers around three mothers of kindergartners who become entrenched in a murder trial. Kelley adapted the series from the 2014 novel by Australian writer Liane Moriarty.

Witherspoon was costumed in a trumpet skirt dress with a floral print, which she paired with a preppy cardigan. Kidman, who was wearing a strawberry blonde wig, wore a brown sweater and oversized beige trench coat. The two ladies, who were with their onscreen childrend, joked around with each other while filming scenes at an elementary school. At one point, the superstarts were spotted laughing as a pack of children ran around them.

Big Little Lies also stars Shailene Woodley, Laura Dern, Alexander Skarsgård, James Tupper, Adam Scott, Zoë Kravitz and Kathryn Newton.