Catherine Zeta-Jones has told Britain's OK! Magazine that she and Michael Douglas may not have set a precise date for getting married, but they're making plans. "We are now deep in preparation! It's going to be a very special event," she is quoted as saying. Zeta-Jones, 30, added that the ceremony will be "even more" special now that she and fiance Michael Douglas, 55, welcomed their son, Dylan, who was born on Aug. 11. The Douglases reportedly sold the rights to OK! to publish exclusive photos of them, for a fee said to be $850,000. (The practice is considered common in the U.K., where the appearance of a celebrity's photo in one publication will arguably stop other publications from stalking the star for more.) The Douglas trio was photographed in the California home of Michael's father, veteran star Kirk Douglas. Meanwhile, Britian's Hello! magazine has a photo spread on Iman and David Bowie with their child, Alexandria, who was born Aug. 15. Iman recently told PEOPLE that she encountered Zeta-Jones when they both were pregnant and the two women compared tummy sizes.