New Delhi, June 12 -- MUMBAI - The most cinematic-looking Hindi trailer to land this week is not pointed at a single multiplex. It will stream for nothing.

Amazon released the trailer for Ab Hoga Hisaab on Friday, a Punjab-set revenge drama that arrives on its free, advertising-supported app MX Player on June 18. The cut is dusty and widescreen, scored for menace, and built around two brothers and a debt that has to be settled. What it is not is a theatrical release, and that is the whole point.

This is Amazon's bet on the part of the Indian audience that will not pay. MX Player, which Amazon folded into its stable as the free tier beneath Prime Video, is chasing the enormous mass of viewers who stream on phones and never reach for a su...