Catherine Zeta Jones has lavished praise on her No Reservations co-star Aaron Eckhart - but insists the pair are just good friends. The actress stars alongside Eckhart as his on-screen wife in the romantic comedy and the pair's close relationship was rumoured to have infuriated husband Michael Douglas. However, Zeta-Jones is adamant she and Eckhart are just pals, although she confesses she loves spending time in his company. She says, "When I heard Aaron was keen to be in the film it was terrific. "We'd never met before and got on really well. And before we knew it, we were ready to go. So it was an easy process of getting together. But we had this intense training together which was a laugh."