I remember so little about this film, but please bare with me here. 
The plot revolves around two kids, one boy who has some kind of illness, possibly cancer, and an older boy who hangs out with him and protects him from bullys.
In the first half of the movie, a group of older bullies start harassing the smaller kid about the illness that he has. The older friend throws a rock at the main bully and it hits him right in the head. At least that’s what I think happens. Then the two kids get away on a bicycle, the younger kid riding on the handlebars, and they go down a very steep road.
I know the two kids floated in a creek near there homes in an inner tube. That’s a completely random thing, but it sticks out quite a bit in my mind.
The sick child’s mother is single.
There is also one part where the mother, her son, and his friend eat ice cream in their kitchen.
At one point, the older kid persuades the boy to use his allowance to buy candy, since he doesn’t eat a lot of it because of his illness. When they’re at the store, the little boy doesn’t know which ones to get, so the older tells him it’s okay to sample them out, hehe.
Of course, the kid does get sick then. I can’t recall if the boy has to go to the hospital for it or not.
Sadly, at the end of the film, the one boy dies. Then, after this, the mother protects the older child from his own mother, because she yells at him and appears to be very abusive.
I would have searched for this myself, but even with google, it’s difficult. Hopefully someone here can help me :).