This episode takes place on December 24, 2005 while Lex's dream takes place on December 24, 2012.
Alisen Down (Lillian Luthor) is 4 years younger than Michael Rosenbaum (Lex Luthor) her on screen son.
This is Smallville's first Christmas episode.
The owners of the farm in Langley, BC, Canada, where the Kent Farm outdoor scenes are filmed, make a cameo during the Kents' holiday party.
In Lex's vision of the future, Clark is a reporter at the Daily Planet but doesn't wear glasses. This is the first time Clark has been portrayed as a professional reporter.