Writing for Variety, Peter Debruge said, "But this is ultimately Kirby's movie, as the stage marvel (better known to audiences for her work on The Crown) delivers her most impressive screen performance to date—not just the remarkable commitment of that childbirth scene, but the way she navigates the character's uncertainty for the rest of the movie."[22] The Hollywood Reporter's David Rooney said that "those with the stomach for a forcefully acted representation of the gut-wrenching impact and long-range after-effects of sudden infant death will be rewarded with moments both powerful and affecting."[23]