A young child finds a portal to a magic world in an ordinary household object
....and stops an evil tyrant from ruling over the people there.
Hint 1: >!It's a children's movie!<
Hint 2: >!Our protagonist enters this world looking for a lost keepsake!<
Hint 3: >!The main character is not a human!<
Hint 4: >!It's a movie based on a TV show!<