To understand the failure of Mercury Pookkal , one must look at Tamil cinema's commercial landscape at the time of its (assumed) release:
The director’s approach is minimalist and patient. Scenes are allowed to breathe; camera movements are unobtrusive, favoring composition and natural light. The screenplay resists the temptation to tie up every emotional thread, which may frustrate viewers seeking tidy resolutions but will reward those who appreciate realism and open-ended storytelling. Mercury Pookkal Tamil Movie