Julia Roberts may not be afraid of the dark — but one actor still gave her chills.

Audiences fell in love with Roberts in the 1990s with the film “Pretty Woman,” and now she’s returning to the screen in the crime drama “After the Hunt.” But one of her co-stars in the film genuinely “scared” her.

The movie, which stars Ayo Edebiri and Andrew Garfield and is directed by Luca Guadagnino, was the topic of discussion during a recent appearance on “The Late Show with Stephen Colbert.” However, Colbert steered the conversation in a different direction, asking about a cast member he’d heard genuinely “intimated” Roberts.

Roberts revealed it was “the fabulous Chloë Sevigny, who I had never met before and Ayo had never met before, and Luca has worked with a number of times because she’s fabulous.”

The moment of fear came during a rehearsal at Roberts’ home.