Apparently Scar Jo is "passionate about popcorn".
The 31-year-old actress is going to serve customers in the shop, Yummy Pop, in the district of Marais this Saturday.
The store will serve up gourmet popcorn flavours, such as strawberry and cream, sea salt, chocolate, and truffle, parmesan and sage, AFP reports.
According to Scarlett's representative, the actress is passionate about popcorn, and the store is a "labour of love" with her husband, Romain Dauriac.
"It has been a dream of mine and my family for several years to bring our favorite American snack to our favorite European City!" said Scarlett in a statement obtained by E! News.
"I am so excited to introduce Yummy Pop, a labor of love and Epicurean enthusiasm. My hope is for Yummy Pop to become a Parisian snacking staple and a symbol of friendship between my two most beloved cities, Paris and New York."
Scar Jo currently splits her time between New York and Paris with her French advertising exec hubby and their daughter, Rose.
The couple reportedly worked with New York chef, Will Horowitz, on the Yummy Popcorn menu.
The store will allegedly close again after its soft opening on Saturday, and launch with a grand opening later this year.