Don't call her Mrs. Depp!
Johnny Depp, 47, tells Extra the reason he hasn't wed gal pal of 12 years Vanessa Paradis is because "I'd be so scared of ruining her last name. She's got such a good last name."
The three-time Oscar nominee, whose thriller The Tourist with Angelina Jolie hits theaters next Friday, adds he already feels as if he's wed to the French model/actress, 37.
"I never found myself needing that piece of paper," he says. "Marriage is really from soul to sou...