Continuity mistake: In the opening scene, the guy bothered by Kris Kringle about the authenticity of the reindeer display is leaning in different positions between the front angle and its reverse. (00:02:00)
Continuity mistake: The note that Susan wrote to Santa Claus changes in writing style between the time it's first shown and the time her mother signs it seconds later - the words "Yours Truly, Susan" are written completely differently the second time. (01:23:30)
Continuity mistake: When Dr. Sawyer is giving Kris the exam, during the part where Kris is doing the physical coordination test, we see Kris from Sawyer's point of view, and Sawyer is drumming his fingers. When the shot switches to Kris's, he is fingering his eyebrow. When it switches back, fingers drumming. Finally, when it switches back again, his hands are neatly folded in front of him.
Answer: Not sure of the dialog but here is the Christmas Carol they sing, the lyrics are: Sinterklaas kapoentje, gooi wat in mijn schoentje, gooi wat in mijn laarsje, dank u Sinterklaasje. The translation is: Sinterklaas good man, throw something in my shoe, throw something in my boot, thank you Sinterklaas. Actually not a Christmas carol but a song for another holiday earlier in December.
JustMeintheUK