There was a children's movie I watches like maybe in the 1985 or something like that.

It was a story about a little boy whose parens die in a car accident. The boy stops speaking as a consequence. He then stays with his aunt and uncle (?)

And then there is some kind of circus he meets and he is always going to see them.

Then there is a scene where he tries to crash other cars with little stones he collected. He tries to let the stones fall down on the street to have some kind of revenge for the death of his parents.

The end ist, that the circus is moving away and he runs behind them, there is a
Balloon going up in the sky and the boy points at the balloon and speaks his first words again. He points at the balloon and says "balloon, the balloon!" And that's the end of the movie.

I'm not sure anymore but I think it might have been an italian TV production.

Does anyone know the title to this movie?

Many thanks