The American Pianist actor walked arm-in-arm with the Russian model, who showed off her incredible midriff in a revealing ensemble.
She teamed it with a low-slung pair of black combats, opting for casual sandals.
Adrien and Lara are said to have met at the Cannes Festival in 2013, and their relationship seems to have been going from strength to strength ever since.
The attractive couple were recently spotted looking loved-up at amf AR gala in Cannes once again, and have been pictured out in public on a string of dates ever since.
Or shop our alternative monochrome picks lined up below. Celebration: Posting a picture of the group all together on Instagram, Linda wrote, 'If we look happy it's because we are!