I saw this on tv between 1963 and 1966. My clearest memory is of a monster about three feet tall, shaped like a puffer fish, and blew like the wind at the boy to stop him on his journey. There also was a troll figure who lives under a bridge in a gully. The boy overcomes the challenges and finds the blue rose growing at the top of the mountain. And no, it was not The Thief of Bagdad. thx!!