Simplify the following text for a Grade 9 native English-speaking person.
Original: The SpongeBob SquarePants Movie is a 2004 animated film based on the popular Nickelodeon television series SpongeBob SquarePants .
Simplified: The SpongeBob Squarepants Movie is a 2004 movie based on Nickelodeon 's SpongeBob SquarePants television series .