These were popular with us kids back inthe 50s - 80s on Saturday morning flicks. I know therels site dedicated to them on TV Cream, but i can't be bothered to research it.
We're talking about a boy whose Dad goes away to work or something,and when he comes back they go on this fairground ride and the boy dies in his Dad's arms. Film name, please?
Also a film with a boy with a flying bicycle, no I wasn't on drugs!
The CFT became the Children's Film & Television Foundation until last year, when it became the Children's Media Foundation. All of its films are listed here:
http://www.cftf.org.uk/catalogue/index.html
Clicking the links will give you details of each film but 'The Sky-Bike' would seem to be a good candidate for your second reference.