When they re-emerged Emma had removed her longsleeve top and had taken one of William’s bags off his hands.

Leading the way, Emma appeared in fine spirits, smiling as they made their way back to her blue Audi.

The Harry Potter star previously admitted she was worried her wealth may be off-putting to potential boyfriends, but William is believed to be affluent in his own right.

The tech entrepreneur – who graduated from Princeton – reportedly makes $150,000 a year and comes from a wealthy background as his retired father is director of a discreet golf club.

The romance is Emma’s first since splitting from Matt Janney in December 2014 after a year of dating.

Speaking in the September issue of Vogue, she admitted: ‘I felt really uncomfortable, even before my relationship ended, I went on a silent retreat because I wanted to figure out how to be at home with myself.’

Following their break-up, a spokesperson confirmed the split was down to the actress’s ‘unrelenting work schedule’, adding that things remained ‘amicable’ between the pair.