I can't remember the name of a children's movie I saw when I was young
I saw a movie which started in colour film then changed to colour animation. A boy is in his bedroom when a box flies in through the window. He pulls a string on the box and it opens up in to a sort of gate way. When he goes through the gate he changes in to an animation and has an adventure.There is a policeman who whizzes about on one wheel.
I have only ever met one person who remembered the movie and they couldn't remember what it was called either. Please help as this has driven me nuts for the past 20 years!
