January 2015: filming in a small town near Pittsburgh called Millvale.
The film's original title was "The Most Wonderful Time".
Molly Gordon, who portrays Lauren Hesselberg, is the real life daughter of this movie's director, Jessie Nelson.
Was filmed with the title "Let It Snow".
Steve Martin narrates the first official trailer, which was released in August 2015. He also narrates throughout the film.