Brad Pitt on Tuesday scotched rumours that his wedding with Angelina Jolie will take place in August.
Pitt also said his partner will not join him on the red carpet in Cannes later on Tuesday for the premiere of the blood-drenched drama Killing Them Softly in which he stars as a hit man.
"She's not here right now. She's prepping for a movie that starts pretty soon," the 48-year-old actor, sporting shaggy blond-tinted hair and a goatee, told reporters after a press screening of Andrew Dominik's movie.
Asked if he planned to act in another film alongside 36-year-old Jolie, he replied: "Actually, I'd love to."
"We actually really, truly have no date" for the wedding that the couple announced in April and which will come after six children and years of unwedded coupledom, he said.
Pitt and Jolie came close on the sets of 2005 film Mr and Mrs Smith. They have three biological and three adopted children together.
Brad Pitt with Angelina Jolie
Pitt's new film features him as a contract killer working for a mob syndicate run like any major US corporation, complete with brutal cost-cutting to cope with the recession.
Killing Them Softly is one of 22 films vying for the festival's coveted Palme d'Or top prize, to be awarded on Sunday.