In Fiennes' upcoming romantic thriller -- based on John LeCarre's novel, "The Constant Gardener" -- Rachel Weisz plays the handsome thespian's doomed bride.
Asked about his attraction to ill-fated romances, Fiennes told United Press International: "Jennifer Lopez made it to the end of 'Maid in Manhattan.' She wasn't going anywhere."
The Oscar-nominated star of "Schindler's List," who will be seen this fall playing villain Voldemort in the fourth Harry Potter film, added: "I don't only want to play tragic love stories. The Merchant-Ivory film I just did ('The White Countess') is a love story and both partners get through to the end -- intact -- together."