The cast also includes Samuel L. Jackson, Joan Cusack, Bradley Whitford, Karan Soni, Mamoudou Athie, Mary Holland and Hamish Linklater.

It premiered during the Special Presentations section at the 2017 Toronto International Film Festival and was released on April 5, 2019 by Netflix.

The film received mixed reviews with critics praising the performances and Larson's potential as a filmmaker while some lamented the screenplay as too "immature" and "whimsical".

During this time, Kit receives the next file and learns she must be able to surround the unicorn with a loving environment, but realizes her poor relationship with her parents prevents this.

On the weekend Kit should be preparing her work presentation, but goes on an "Emotion Quest" wilderness trip with her parents, confronting them during the 'truth circle' time, leading to a family discussion.

Various crew members appear in brief roles, including: writer Samantha McIntyre as Sam, a woman also seeking a unicorn; composer Alex Greenwald as a ninja; production designer Matt Luem as Jonathan Scott, Kit's art professor; and executive producer Nathan Kelly as David Davidson Jr. Toks Olagundoye and Jack J. Yang cameo as Scott's fellow art professors.

The site's critics consensus reads, "It'll be best enjoyed by audiences with a high tolerance for colorful whimsy, but Unicorn Store is easy to like — and it suggests Brie Larson has a future behind the camera.

[9] Clarisse Loughrey of The Independent gave it a positive review, praising its "earnest emotion" and "joyous celebration of femininity.

"[10] Leah Greenblatt of Entertainment Weekly rated it "B", and called it "A candy-coated, willfully quirky wisp of a film; like a Michel Gondry fantasy dipped in glitter and rainbow sprinkles.

"[11] Tim Grierson of Screen International wrote "Both skewering and celebrating its adult protagonist's childlike wonder, Unicorn Store runs the risk of excessive whimsy at every turn.

"[12] Peter Debruge from Variety was critical of the film, saying it fails to create the right tonal balance, and labeled it "a creative misfire".