The Grinch Parents Guide
No Matter How Loyal You Are to Jim Carrey's Grinch, You'll Want to See This 1 With Your Kids
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Although this movie is clearly geared toward little kids, there is a particular moment when the Grinch implies that Santa isn't real. And while it definitely won't shatter your child's entire perception of the holiday, he mentions that because no one's ever seen Santa, he couldn't possibly be real.
Without giving the Grinch's entire backstory away, viewers learn that he began to hate Christmas while living in an orphanage as a child. Throughout the storyline, children are reminded about the importance of reaching out to people who seem lonely, and that's a great real-world takeaway.