Many movies made in this period built on Mohanlal's image as an invincible, larger-than-life hero. Notable examples include  Aaram Thamburan ,  Narasimham ,  Ravanaprabhu  and  Naran . Some of these films faced criticism for their lack of realism and emphasis on Mohanlal.  Priyadarshan 's  Kala Pani  and  Lohithadas 's  Kanmadam  were