Screen gems Catherine Zeta-Jones and Angela Lansbury are taking the stage of The Great White Way in "A Little Night Music." ET was there for opening night on Sunday.

Catherine was happy to debut the production in front of her supportive family, including husband Michael Douglas. She told ET how the stage compares to the screen: "It's just really different. You can never ever, ever get that immediacy that you get on stage, live theatre. It's just something that I've missed…and now that I'm doing it again, I've realized how much I enjoy it and how much us actors enjoy that applause."

The legendary Angela Lansbury praised her co-stars, saying, "The company was very up tonight and Catherine Zeta-Jones was just superlative, so we hope that we have a lovely hit on our hands."

Watch the video to hear from more from famous theatre-goers such as Donald Trump with wife Melania and "Dancing with the Stars" champ Kym Johnson, who is also currently starring on Broadway in "Burn the Floor."

"A Little Night Music" is now entertaining audiences at Walter Kerr Theatre.