According to the official site of Michael Douglas: "I proposed to Catherine on New Year's Eve, at my house in Aspen. I met Catherine at the Deauville Film Festival in August of 1998, and we have been dating since March of 1999. We plan to marry sometime this year, however, no date has been set."

Some of his movies: Coma (1978), Romancing the Stone (1984), The Jewel of the Nile (1985), Fatal Attraction (1987), Basic Instinct (1992), Diclosure (1994), The Game (1997).

A brief fling with Simply Red singer Mick Hucknall followed after they met at a fashion show in Milan, but by this time she was making headway in Hollywood, after a less than promising start.

It is said, that Cathy turned down his marriage proposal in 1996, because she wanted "to be known as an actress rather than a Hollywood wife".

Some of the films starring him: Withnail and I (1987), Alien³ (1992), The Three Musketeers (1993), Katharina die Große (1995) (TV) (with Cathy!), Doctor Who (1996) (TV).

Some of the films starring him: "Soldier Soldier" (1991), Braveheart (1995), Still Breathing (1998).

Cathy's relationship with him was rumoured to have ended because she wanted to marry and he didn't.

He was Cathy's first serious boyfriend, 12 years her senior. Their romance lasted just a year, but Catherine's father is said to have disliked him.

Some of the productions directed by him: Out of the Blue (1991/I), The Harmfulness of Tobacco (1991), Dancing Queen (1993) (TV), Briefest Encounter (1993) (TV), Micky Love (1993) (TV), Martha, Meet Frank, Daniel and Laurence (1998), Talk of Angels (1998).