One of the standout moments in Halina Reijn’s erotic thriller “Babygirl” finds Nicole Kidman’s Romy being sent a glass of milk from the young intern she’s having an affair with while they’re separately at the same bar. Romy accepts the challenge and finishes the entire glass in one sip. Later on, the intern leaves the bar and calls Romy a “good girl.” It’s a sensual and humorous moment, and it’s one that actually happened to Reijn in real life.

“The milk is, of course, an archetype. We’ve seen it in other movies. It is a great symbol of animalistic sides of ourselves. It happened to me,” the writer-director recently told IndieWire. “I was playing in Belgium onstage, and I got offstage, and I had a really good run, and I was like, ‘Oh my god!’ I felt really good about myself for one night in my life.