Lashana Lynch and Riann Steele have joined the cast of the all-woman UK comedy, Powder Room, from commercial director  M.J. Delane (feature debut).

Starring Sheridan Smith and Jamie Winstone, the project comes from producer Damian Jones' DJ Films, and centers on a woman whose life is turned upside down during a big night out with her old college friends.

That's all we know about the story at the moment.

Steele and Lynch will play "old college friends."

The micro-budgeted project pic is scripted by Rachel Hirons.

Shooting is underway in London, and will continue through December 21. 

Steele was last seen on the big screen in SKET, while Lynch co-starred in Noel Clarke's Fast Girls.