Michelle Williams and Ryan Gosling found themselves in an unusual rivalry while filming Blue Valentine -- seeing who could gain the most weight for their roles.
"She ended up winning. She gained about 15, 16 pounds. He gained 14," the film's director, Derek Cianfrance, told PEOPLE at Monday's Gotham Independent Film Awards sponsored by Euphoria Calvin Klein.
Calling all HuffPost superfans!
Sign up for membership to become a founding member and help shape HuffPost's next chapter
