Jan. 24 (UPI) -- Matthew McConaughey doesn't remember filming a full-frontal scene in his film Serenity.
"That's what I keep hearing!" McConaughey said after host Stephen Colbert brought up the "buck naked" scene. "I'm going to the premiere tonight and I've gotta see if there's a new edit or a new cut of this film I haven't seen."
"I know there was topless," he added. "And I got people coming up going, 'It's great to see you full-frontal.' I'm like, 'What?!'"
Serenity follows a sea boat captain (McConaughey) who is approached by his ex-wife (Hathaway) to murder her new husband (Jason Clarke). The film was shot on Mauritius, an island 1,500 miles off the coast of South Africa.
"It was only inhabited 400 years ago, so it's quite a mystical place," McConaughey said. "It's got a volcano in the middle of it. It's got a lot sugar cane and they make great rum."
McConaughey previously discussed his Serenity nude scenes in a joint interview with Hathaway on Entertainment Tonight this month.
"I don't know if that's good for box office or bad for box office," the actor joked.
"Trust me, it's real good," Hathaway responded.
Serenity opens in theaters Friday. McConaughey and Hathaway previously co-starred in the 2014 movie Interstellar.