Indian Cinema should be proud of this movie.
For as implausible as the idea of having a vengeful fly is, the makers of this movie have it "believable".
What impressed me the most about this movie is the quality and its budget. Wikipedia says that Naan E was made with a budget of Rs. 30 Crore. In comparison, Endhiran is reported to have been made with Rs. 130 Crore (I doubt the Endhiran facts). The quality of the graphics and the logic that went into making Naan E is amazing. I think (I might be wrong) that Naan E is an example of a movie where the graphics got its fair share of the budget and the acting crew got their fair share, and as a result, the viewers get their money's worth as well.
This must be a very important rule in Business (if it already isn't, it should be) - if a product's raw material cost split up is unreasonable, stay away from producing or consuming the product.