The movie had very good cinematography. It did capture the spirit of Kumbh Mela in its own way. The interaction between a few of the kids and other adults was nicely done. That being said, I think there are a few distortions in this movie.
1 - Most sadhus DO NOT smoke ganja. Yes, some do, partly to help in bearing the cold, partly to help disassociate from the body, etc. But this movie makes it look as if sadhu = ganja and that is not the case.
2 - Too much focus on missing people and wailing spouses. Yes people have gone missing but imagine up to 100 million people are attending this program and there is no drunken brawl, major incidents of theft, chaos, etc. Yet this more "happy" side doesn't seem to be highlighted much at all.
3 - The movie sort of meanders for some time, somewhat aimlessly. So that too detracts to some extent.
Worth a watch 1 time but that's it.