Last year, Rebecca Stern got her big break. Her feature debut, Well Groomed, was selected to premiere at the South by Southwest Film Festival in Austin, Texas. It was the moment that Stern, a documentary filmmaker, had been building up to for five years—and it paid off big time. At the festival, Stern’s film, about an eccentric cohort of dog groomers, garnered attention from press and buyers, including HBO, which bought the film for its streaming platform HBO Sports.