This was Don Ameche's final film before his death on December 6, 1993 at age 85. He completed his scenes shortly before he died.
The pudding jingle that Manny and Corrina create when they are sitting together behind the piano was originally composed by director Jessie Nelson herself.
The song that Molly and Corrina play on the piano is John M. Neale's "Good King Wenceslas," an English 1853 Christmas carol that originated in Finland 300 years earlier.