updated 07/11/2013 AT 12:05 PM ET
•originally published 07/11/2013 AT 7:00 AM ET
Halle Berry and Olivier Martinez are about to say “I do!”
The couple, who revealed their engagement in March 2012, are planning to get married this weekend, a source confirms to PEOPLE. They boarded a flight to Paris Tuesday with Berry’s daughter, 5-year-old Nahla.
With rumors flying of an impending wedding, whether they remain in Paris or travel further afield – Martinez loves the Mediterranean – remains a mystery. But the pair have had their eye on summer nuptials for some time, several sources say.
Berry, 46, and Martinez, 47, who are expecting their first child together in early fall, are frequent visitors to the City of Light.
Most recently, the pair attended the Champs-Elysées Film Festival in mid-June, where native Parisian Martinez revealed that the pair would be welcoming a boy.
“My son will be an American,” the actor told PEOPLE.
An item since they met on the 2010 film Dark Tide, “they seem truly in love,” says Sophie Dulac, president of the Champs-Elysées Film Festival. “I’ve known Olivier very well and have never seen him like this.”
Likewise, Berry has been head-over-heels for her French amour – and his homeland.
“She has called him ‘The One,’ ” says Dulac. “She’s said she never expected to meet this Frenchman, to fall in love like she has.”