In the intimate moment, Waterhouse, 22, leaned in for a big kiss as she wrapped her arms around the 39-year-old actor's waist on June 4, reported Us magazine.
The 'American Hustle' star and Waterhouse were last spotted brushing shoulders at the the Metropolitan Museum of Art's Costume Institute Gala in NYC last month. Despite the public appearance, the twosome chose not to pose together on the red carpet.