The film stars Tim Allen as Scott Calvin, a divorced father of his 6-year-old son Charlie, portrayed by Eric Lloyd. Though initially distant, Charlie and his father are drawn closer than ever through a series of events that force Scott to take on his new position as Santa Clause.
"The movie's about a little boy and his dad that aren't very close, and one night they go on a great adventure to the North Pole," 8-year-old Eric Lloyd told ET. "Then they get to the next Christmas, and they're very close."
ET was invited on set back in 1994 with stars Tim Allen and Eric Lloyd as they filmed the hilarious roof scene, where Scott Calvin is asked by his son Charlie to don the iconic Santa suit for the first time.
Check out this video to relive the best moments from this beloved holiday classic on the set back in 1994.