While their characters are supposed to be the same age in the movie, Danica McKellar is 10 years older than co-star Dustin Milligan.
The film line Kat (Danica McKellar) quotes whilst she and Sam (Dustin Milligan) are going through E.B's (Lea Thompson) movie collection "Well, what are you doing creeping around a cow shed at two o'clock in the morning? That doesn't sound very wise to me." is from Monty Python's Life of Brian (1979) in that movie the line is spoken by Terry Jones' character Mandy Cohen.
Both Lea Thompson and Scott Patterson have played the parent of Vanessa Marano. Lea played Vanessa's legal mother in Switched at Birth and Scott played Vanessa's biological father in Gilmore Girls.
This movie was released on DVD and streaming in the UK under the title: A Christmas Love Story