The trailer of the upcoming Malayalam film, Grrr, starring Kunchacko Boban and Suraj Venjaramoodu, was released by the makers on Saturday. A drunk Reji seems to have deliberately entered a lion’s enclosure in a zoo, challenging the wild animal for a duel. Suraj Venjaramoodu’s zookeeper character has been bestowed the responsibility of saving Reji, while the authorities do their best …