Hendricks and Reiner will play old art-school rivals that both happen to be expecting children at the same time, but one is carrying hers while the other is using a surrogate, played by Camp.
The movie comes from best-selling author Risa Mickenberg (Taxi Driver Wisdom) and will be directed by filmmaker Marianna Palka, who recently starred on Netflix's wrestling comedy Glow. David Alan Basche and Gbenga Akinnagbe also star.
Reiner and Basche are producing, along with former Comedy Central president Michele Ganeless.
Hendricks was last seen in the comedies Fist Fight and...