kids film late 70s

[yiddy13]

i remember seeing a film when i was a kid , it was a boys birthday and he got given a big box which had a bike in it and when he got onit he rode into the box and then it turned into a cartoon.

[Donquixote]

That sounds a little like The Phantom Tollbooth...but that was a car rather than a bike
http://www.theanswerb.../Question1063957.html

[tonymclark]

Sounds a bit like The Phantom Tollbooth...

http://www.imdb.com/t...tt0064806/plotsummary

[Donquixote]

Doh! Messed up my link there! ;oP