the name of this movie??

hey guys
I've seen this movie when i was a child (I was born on 1991) so i remember it vividly. I think it was a horror movie ...
there was a young boy who waked up in a coffin. he was dead but he didn't know it yet. people were carrying him to the cemetery and they couldn't hear him shouting in the coffin ...
he waked up many times, one time he was cut to pieces and he went to his parents house and insisted that he was alive ...
that's all i can remember...