Hollywood casting is often聽shrouded in mystery, but with stars like Olivia Munn unafraid to talk about anything and everything, we get juicy little tidbits here and there about how Tinsel Town works. In a recent interview with Sirius聽Entertainment Weekly Radio,聽set to air Thursday, September 21,聽the聽X-Men: Apocalypse star revealed聽that for her featured cameo in the upcoming聽Ocean鈥檚 Eight, she had to pay for her entire wardrobe 鈥 but she鈥檚 not mad about it.

鈥淚 was so excited when I got the call聽to be a part of聽Ocean鈥檚 Eight,鈥 she told聽host Julia Cunningham. 鈥淎nd I did not anticipate that I would have to tell so many people, 鈥業鈥檓 not really in聽Ocean鈥檚 Eight 鈥 I had聽a cameo in Ocean鈥檚 Eight.'鈥

Though she was asked to appear as herself in the film, she never recouped the funds聽she put into preparing for her on-screen shots. (Munn appears, along with several other celebs, in聽a scene at the Met Gala, which filmmakers聽re-created聽in April.)

鈥淚t actually cost me money to be part of Ocean鈥檚 Eight. 鈥βI paid a lot of money to have to basically spread the word that I鈥檓 not in Ocean鈥檚 Eight,鈥 Munn joked to Cunningham.

鈥淭hey鈥檙e like, oh, do your own glam 鈥 and I got the dress and all that and then you submit the bills for it because, you know, I鈥檓 part of your movie. And then they鈥檙e like, 鈥極h no, the bills come right back to you.'鈥

Even so, Munn couldn鈥檛 be more excited about the all-female reboot of the Ocean鈥檚 franchise. 鈥淚t is going to be amazing. That鈥檚 just a given. We have Sandra Bullock, Cate Blanchett, Mindy Kaling 鈥 who鈥檚 a very good friend of mine 鈥 and Sarah Paulson, Rihanna. It鈥檚 going to be amazing,鈥 she gushed.

She noted, though, how ridiculous it is that women still face a disadvantage in Hollywood. 鈥淵ou see all these guys who keep falling up. You know? They do crappy movie after crappy movie, they just keep get more and more chances. And it鈥檚 really聽obnoxious that if there鈥檚 a female lead or female director, it鈥檚 like, 鈥榊ou鈥檝e got one shot,鈥 but no we don鈥檛!鈥

Munn鈥檚 entire interview will play on EW Radio Thursday at 6pm EST.

Will you check out聽Ocean鈥檚 Eight? Tell us @BritandCo!

(Photo via聽Frazer Harrison/Getty)