Ryan Reynolds and Emma Stone have confessed hearing their voices on new animated movie The Croods was embarrassing.
The pair voice cavemen in the family adventure about a prehistoric family who embark on a journey to find a new home when their cave is destroyed.
Emma, famous for her husky voice, cringed: "It's like hearing your voice back on a voicemail. I still can't believe I sound like this."
Ryan agreed and added: "Everyone feels that way - like there's some solace in that. I think everyone feels like that when they hear their own voice. (It sounds) kind of shrill and brutal."
The 3-D film, which also stars Nicolas Cage, takes place in prehistoric times and focuses on the world's first family, the Croods.
Emma voices a teen girl named Eep, who longs to leave her cave and see what's out there. Her father, voiced by Cage, is overly protective. One day they meet a guy named Guy, played by Ryan, and venture out together and learn about the world.
This is the first time Ryan and Emma have done an animated movie, and they hope it rates with some of their own childhood favourites.
Reynolds confessed he was a fan of the TV show Thunder Cats and The Smurfs. He quipped: "Not a turn on but a good cartoon nonetheless."
Emma revealed: "I loved Peter Pan and Alice In Wonderland."
The Croods is tipped to reach number one at the box office in its opening weekend.