Girlboss (2017)

Sophia discovers that selling vintage clothes online can become more than a way to get through the month. Girlboss makes the jump from taste and improvisation to a working business messy, with the founder's difficult personality part of the problem. It is a loosely fictionalised story with a brash comic tone. Pick it for the moment when being good at spotting an opportunity stops being enough to manage all the work it creates.