Ryan Reynolds

Scarlett previously dated her 'Black Dahlia' co-star Josh Hartnett for two years.

Josh, who has remained good friends with Scarlett since their split, has joked about finding the "perfect" photograph for her bachelorette party invitations.

A source added to the New York Daily News newspaper: "Josh has the funniest picture of Scarlett on his phone. They're at home having dinner and she's brandishing a carving knife over a chicken like a slasher, and making a face. It would look perfect on the invitation for the bachelorette party!"