Matthew Rhys is "terrified" about his steamy scenes with Keira Knightley and Sienna Miller.
The 32-year-old actor, who plays Welsh poet Dylan Thomas in new movie "The Best Time Of Our Lives," is dreading stripping naked for the raunchy scenes with the stunning British actresses.
Matthew said: "I don't think nervous actually quite qualifies the way I feel. Terrified is a more accurate description. I hope I am up for the scenes!"
The movie focuses on a reputed love triangle involving Thomas, his wife Caitlin - played by Sienna - and the poet's childhood friend Vera Killick - portrayed by Keira.
Matthew, 32, also revealed his anxieties about playing the legendary Welsh poet.
He said: "I was enormously nervous and worried about taking on the mantle of one of Wales' greatest sons. I'm happy about how passionate Keira and Sienna are about the script and story. We all share the same enthusiasm for the amazing story."
"The Best Time Of Our Lives" - written by Keira's mother Sharman Macdonald - is currently being filmed in west Wales.
Lindsay Lohan was due to take the role of Caitlin, but reportedly pulled out of the project when she was unable to reach an agreement with the film's financiers.