The Krrish franchise is a hugely successful one. After the third installment, the team is envisioning Krrish 4, and we’re excited. Of course, the film is helmed by Rakesh Roshan but you’ll never believe who is assisting him with the script! Reportedly, Hrithik Roshan‘s sons,Hrehaan Roshan and Hridhaan Roshan sit with Rakesh to actively brainstorm and develop the storyline. Apparently, the kids are suckers for everything sci-fi and action, and are fans of movies of that genre. They know what’s hot and what’s not, and suggest what would work and what won’t. Filmmakers in the making, we think!