Kathy Hilton opened up about filming the Real Housewives of Beverly Hills reunion. The actress, 62, talked about the experience at the premiere of her half-sister Kyle Richards' new movie Halloween Kills. 'Wow, I had seen bits and pieces of the reunion when both my sisters were on it and it made me cry,' the socialite said. 'If it’s not my family getting upset, I have to tell you, I left that night, after that 12-hour day and got on a plane to New York. I was so wiped out, I slept the entire flight, arrived in New York I think 7:30 or 8 in the morning and slept for 10 hours when I got to the hotel.' An emotional experience: Kathy Hilton opened up about the difficulties of filming the Real Housewives of Beverly Hills reunion Despite the difficulties of filming the reunion, Hilton did say that she enjoyed her time guest-starring on the show and didn't rule out a return to the program. 'I don’t know, I have had a great time,' she said. 'First you have to see if you are invited back, but I’ve had a wonderful time. I love the girls.' Her half-sister Richards has appeared on the program every year since its inception in 2010. She is the last original cast member still on the show. A spooky interview: Hilton, 62, spoke to Extra about the RHOBH reunion at the premiere of Halloween Kills In it together: Hilton and her half-sister Kyle Richards appeared in the reunion together which Hilton said made her cry A family reunion: Richards and Hilton were able to spend a lot of time together while filming this season RHOBH Hilton said she was happy to see her sister again while filming the show because they hadn't seen each other in a few years. She said, 'To see Kyle, I have not seen the last few years, just to see her again, I talked to her a lot on location. I’m excited.' The mother of Paris Hilton also opened up about her daughter's joint bachelor/bachelorette party with her fiancé Carter Reum. Party time: Hilton recently attended her daughter Paris' joint bachelor/bachelorette part with her beau Carter Reum 'We had the best, best time': Hilton talked about how much fun she had at the event with her daughter 'We had the best, best time. We danced — oh, my goodness, we had a ball,' the reality star said. "I just got off the phone with Carter, and I said, ‘Could we have had a better time?" She added, 'To have all the family together… I am the happiest when I have all my children under one roof, which was a big hotel. We just laughed and danced and it was so fabulous.' The reunion will premiere tonight on Bravo, and it will certainly be explosive given recent tensions over Erika Jayne's ex Tom Girardi. An explosive reunion: The RHOBH reunion will seem some juicy moments with all the drama surrounding Erika Jayne and her ex-husband Tom Girardi On the hot seat: Moments from the trailer included Andy Cohen saying that he planned to 'fire up the barbecue' with Jayne, seen here in 2020, on it Fans are set to see Jayne get grilled by Andy Cohen in a four-part explosive reunion show for RHOBH. In it, fans have already heard Jayne talking about Girardi from the teaser, where she appears to say: 'You know what, I can't control what Tom Girardi did.' 'We're going to put you on a skewer - and I'm going to fire up the barbecue,' Cohen tells Jayne unceremoniously, making it clear that he's going to ask her tough questions about the alleged scam. All rights reserved for this news site (dailymail) and under his responsibility