Catherine Zeta-Jones has confirmed that she and Michael Douglas have a “very special friendship.” The Welsh star tells this week’s Hello! magazine, “He’s the kind of person it’s easy to feel good with . . . Michael has always been great to me. He’s given me a lot of support when I’ve needed a friendly helping hand, and he’s a charming guy and a real gentleman.” Zeta-Jones, the 29-year-old star of “Entrapment” and “The Mask of Zorro,” discussed the relationship after she was photographed recently in a topless clinch with Douglas at his island retreat in Majorca. She says they met at a film festival last year.