Arbaaz Khan, the actor-producer from Bollywood is debuting in Malayalam with Mohanlal starrer Big Brother. Directed by Siddhique, the film has Arbaaz playing Vedanthan IPS. Arbaaz is super-excited because he is becoming a part of a proven industry that has already set up a great cinema culture. And the icing is, of course, having the legendary Mohanlal as his co-star. Arbaaz reveals that there were scenes where he had to over-power the actor with his dialogues and action. But, the thorough professional that Lalettan is, Arbaaz got complete freedom to enact the role. So, he feels that the onus is on him to prove that he is worthy of the role and the film.