Jolie careful in Mexico

Wearing wide-grins and gushing praise for one another - but ducking questions about a possible relationship - Mr and Mrs Smith co-stars Brad Pitt and Angelina Jolie briefly visited Mexico's capital for the premiere of their film.

Jolie told hundreds of fans that Pitt was "a great person. He's very down to earth and very funny", she said, but when asked if he was marriage material, she just giggled and moved on.

The pair were also careful to keep apart. Jolie took the stage first, while Pitt waited. When photographers called for him to join Jolie, Pitt ducked behind a huge movie cutout, then waited until Jolie was gone.