Filmmaker Rajkumar Hirani who is currently working on the life of Sanjay Dutt biopic where Ranbir Kapoor will be essaying the role of Dutt says the biopic will be more engaging if it is a little fictional. Meanwhile the tentatively titled movie 'Sanjay Dutt Biopic' also features Anushka Sharma, Dia Mirza, Manisha Koirala, Paresh Rawal and Vicky Kaushal.