Like countless TV viewers all over the world, Christina Ricci is a big-time Friends fan. But apparently you wouldn’t know it even if she told you right to your face — just ask Lisa Kudrow.

In a recent video interview with Entertainment Tonight, Ricci recalled how she and Kudrow got off to an awkward start when they worked together on the 1998 movie The Opposite of Sex and Ricci tried to compliment her costar’s work on the beloved NBC sitcom.

“I was such a huge Friends fan,” Ricci said. “Well, when I told her that, she thought — I have such a… sort of deadpan delivery that she thought I was making fun of her. And I was, ‘No, no, no.’ And [director Don Roos] had to be like, ‘Oh, no, no, no. She really loves Friends. She’s not being sarcastic.'”

By then, the show about six New York pals navigating their 20s and 30s was already a monster hit. Kudrow herself had been nominated for Emmys — and won the trophy that year — for her portrayal of free-spirited “Smelly Cat” singer Phoebe Buffay.

Ricci, meanwhile, was known for her work in such movies as The Addams Family, Casper, and Now and Then. With projects like The Opposite of Sex and The Ice Storm, she began to transition to more grown-up fare, ultimately becoming something of an indie film queen.

The Opposite of Sex starred Ricci as Dedee Truitt, a pregnant runaway who stirs up trouble when she visits her half-brother, Bill (Martin Donovan), and seduces his boyfriend. “It’s about getting knocked up,” the narrator says in the trailer for the dark comedy. “But it’s also about knocking someone off.” Kudrow played Lucia, Bill’s protective best friend who’s quite suspicious of Dedee. The Sony Pictures Classics film garnered positive reviews and grossed about $5.9 million at the box office.

Ricci later got to prove herself as a Friends diehard when she guest-starred as one of Matt Leblanc‘s many sisters in a 2005 episode of his Joey Tribbiani-centric spinoff show, Joey.