Whistle Down the Wind (1961) IMDb
Rural kids discover an exhausted man in a barn. After interjecting “Christ”, he loses consciousness in the hay, leaving the children to assume that his only word was a truthful answer to the question “Who are you?” As they begin to nurse him back to health, more kids find out, gradually convincing themselves that if Jesus has returned, the right thing to do is to keep the adults from crucifying him again.
The message is vague but delicately presented and actually a little uplifting. A very unusual sort of Christian children’s film.