'We are very happy, he's the best,' the mother-of-four cooed.
'We get along great.'Green, who was educated at Bury Grammar School and Trinity College, Oxford, is an English producer and director.
The Wedding Crashers actress was also seen chatting up The Shape Of Water actor Doug Jones, who played Amphibian Man.
He told Daily he was a longtime fan of the star and his favorite movie of hers is 1980's Somewhere In Time. The director was joined by her film's star, Saoirse Ronan, 23.
She was also wed to Geoffrey 'Geep' Planer in 1977, but they parted ways the following year.
The Darkest Hour's Gary Oldman was joined by wife Gisele Schmidt for the evening.Joining Greta for the event was the stars of her film, Lady Bird.Saoirse opted for a light-color, sleeveless dress and black strappy heels.He was her fourth husband, and is the father of her twin sons John and Kristopher. The pair split after 10 years of marriage and had two children Katherine and Sean together.Her first marriage was in 1971 to Michael Attenborough when she was 20-years-old - but that ended in 1973.
Jane Seymour was first spotted with David Green in 2015.