Answer

There are very few films specifically about Jain child sadhus or child monks. Jain diksha at a young age has occasionally appeared in documentaries, news features, and community videos, but it is not a common subject in mainstream cinema.

Relevant Jain Context

In Jain Dharma, when a person takes diksha, they renounce worldly life and accept the disciplined life of a sadhu or sadhvi. If the person is young, people sometimes refer to them as a “child monk” or “kid sadhu,” though traditionally they are still understood as a renunciant who has entered the path of restraint, discipline, and spiritual purification.

Films / Documentaries

I can only mention what is clearly known within Jain-related context:

• Jain community documentaries sometimes show young boys or girls taking diksha and beginning monastic life.
• Diksha ceremony recordings are often made by Jain communities, especially when a young person accepts renunciation.
• Short educational videos about Jain monks and nuns may include young renunciants, but these are usually not full-length movies.

I do not want to invent movie names or claim that a film is about Jain child sadhus unless it is clearly verified.

Takeaway

If you are looking for authentic material, the best search terms are:

• “Jain child diksha documentary”
• “Jain bal diksha documentary”
• “Jain young monk documentary”
• “Jain diksha ceremony child”

These are more likely to lead you to real Jain community documentaries or recordings rather than fictional movies.