The "Borat" and "Brϋno" star and his actress girlfriend of eight years walked down the aisle in a private Paris ceremony over the weekend, according to Women's Day magazine.
"We did it -- we're married!" Fisher, 34, told friends in an e-mail. "It was the absolute best day of my life and in so many beautiful moments, I missed you all so much. I thought of you as everything was happening, but Sacha and I wanted no fuss -- just us!"
Sources say that Cohen, 39, was spotted wearing a wedding ring in Paris on Sunday.
The couple welcomed daughter Olive in 2007.