Julia Stiles is kicking off the New Year as a fiancée! The actress got engaged to her boyfriend, Preston J. Cook, over Christmas and took to Instagram to share the happy news. In the sweet snap, Julia shows off her stunning engagement ring, writing, "Best Christmas Ever!" People is reporting that the camera assistant popped the question to The Mindy Project star at a private residence in Isla Grande, Colombia, on Christmas Eve. Preston, who most recently worked on Leonardo DiCaprio's film The Revenant, first met Julia last year on the set of 2015's Go With Me. Congratulations to the hapy couple!