Freddie Prinze Jr. shared the secret to his 23-year marriage with wife Sarah Michelle Gellar in a new interview with 'Variety.' The actor told the outlet that the couple has to 'work at' their marriage as he acknowleged,

"I'm Jenn Robinson, director and co-writer, and I don't know if you know who this is — she's a brand new actor, Sarah Michelle Gellar," Robinson quipped, as captured in an Instagram video. She then thanked the crowd for attending the film's opening weekend before advising: "Do not leave before the credits are done. Stay."

Freddie Prinze Jr. and Sarah Michelle Gellar attended the "I Know What You Did Last Summer" premiere together after meeting on the original film.