And that's how it all started.
2 seconds sound clip from the Santa Claus Is Comin' to Town (1970) movie soundboard.
You can hear this line at 00:46:30.119 in the Blu-ray version of the movie.
Quote context
[...]
- Is that why he's called Santa Claus?
- That's why, honey, that's why.
- It turned into quite a proposition. I can hardly keep up with the orders.
- I'm afraid I'm going to have to limit my journeys to one a year.
- But on which night should I go out? I wonder.
- And that's how it all started.
- How goes it, Mister Warlock?
- I've got my magic power working just fine. I can cast up a big freeze, yes, sir.
- I think I can guarantee a white Christmas.
- Wonderful. Then let's be off! Away now!
[...]