According to the Evening Standard, casting directors have chosen Cressy to play the part of a society lady in the adaptation of Deborah Moggach's best-selling novel—which takes place in Amsterdam in the 17th century.
The 25-year-old, who studied drama and dance at Leeds University, just made her theatrical debut at the Hay Festival last week.
But while Cressy is busy making her foray into the movie biz, Harry is ready to meet his match.
According to Vanity Fair, the redheaded royal has moved on and is "out to have fun not that he's single."
The magazine added that "he wants to meet a girl and he is definitely a bachelor."
But it's not like Harry hasn't grieved his breakup with Bonas, a source told the publication that "He was hopeful of getting back together, but it's not going to happen."
Adding, "He was sad, but he's dusted himself off and is now moving on. He's on the lookout for a new girlfriend already."
So who could Prince William's younger brother be considering as his next lady friend?
Well, one possible candidate could be Amanda Shepherd, who was once married to singer Bryan Ferry.
Apparently the two are old pals and were "very flirty" at Guy Pelly's recent Memphis wedding.