BEIJING, June 9 -- "Mr. and Mrs. Smith" co-stars Brad Pitt and Angelina Jolie briefly visited Mexico's capital Wednesday night for the premiere of their film.

    The pair flew into an airport 35 miles west of Mexico City and were driven for over an hour to an upscale shopping center in the Santa Fe district. Several hundred screaming fans waited for hours to catch a glimpse of the pair.

    The two reportedly became romantically involved during filming. They have denied such reports, but Pitt separated from Jennifer Aniston in January after 4 years of marriage. Photos of Pitt, Jolie and her 4-year-old son, Maddox, walking together on a beach in Africa were published in April.

    The pair was careful to keep its distance from one another. Jolie took the stage first, while Pitt waited and move toward the stage until Jolie was gone.

    The movie, which opens Friday, is about husband-and-wife assassins who are clueless about each other's occupation until each is hired to kill the other.

    (Agencies)