The socialite-turned-actress, who will make her film debut alongside Cara Delevingne and Daisy Lowe in the forthcoming Tulip Fever, first sparked rumours of a new relationship after she was spotted on a date with the Wolf Hall and Kingsman: The Secret Service star Holcroft in London last week (ends10Jul15).

They were also photographed cosying up to one another on Friday (10Jul15) as they attended the Wimbledon tennis championships.

Representatives for both stars have declined to comment on the romance reports.

Bonas split from Prince Harry last year (14) after a two-year relationship.