If you are looking for a heartwarming Christmas movie about an elf, I recommend the 2003 film "Elf" starring Will Ferrell. It's a hilarious and touching story about a human raised as an elf in the North Pole who journeys to New York City in search of his true identity. The movie is filled with laughs and life lessons, and it's sure to put you in the holiday spirit. You can watch it on various streaming platforms, including Netflix, Amazon Prime Video, and Disney+.