ET's Mary Hart joins 'Angels & Demons' star Tom Hanks on a rooftop in Rome, Italy for a completely candid interview that includes his reaction to his shirtless scene!

The 52-year-old actor jokes with Mary -- who he refers to as the "eternal hostess" -- saying "nothing is more sexy" than his swimming scene in the new film. He even calls those scenes in the pool "hot laps."

Tom worked on 'Angels & Demons' with director Ron Howard, making this the fourth film the two have done together. "The process is still magical," the actor says of making movies. "The business is still dog-eat-dog but the process is never, ever going to change."

'Angels and Demons', out May 15, is the prequel to 'The Da Vinci Code,' in which Tom's character Robert Langdon must confront a shadowy secret society, the Illuminati, to uncover a conspiracy that may put the Vatican -- and the world -- in explosive jeopardy.

For more ET exclusives of 'Angels and Demons', click HERE.