'Sigma' has promising premise, but struggles with execution: Moneycontrol

Tamil Nadu CM Vijay's son Jason Sanjay's directorial debut, 'Sigma', has the elements of heist, action, and drama, but lacks execution, according to a 2.5-star review by Moneycontrol. "Most of these characters, the review notes, lack sufficient depth or scope to stick in the memory," read the review, but added that the production value gives the film a "polished look".