Why no film on Guru Gobind Singh ji?

Neither a Sikh nor a Punjab resident. However, after seeing the success of movie Chhava based on the life of Chatrapati Sambhaji Maharaj, I feel a movie should be made on Guru Gobind Singh ji's life as well. His sacrifice and principles should be shared with the world. And this movie must be dubbed in all south Indian languages. Edit 1 : Many of you have brought to my attention that such movie can't be made as the portrayal of Gurus by any mortal is forbidden. Thanks for this information. I could never know that. I suggest you all to come up with other ideas like one commentator suggested that a movie could be made on the life of Sahibzadas. We can have some great idea eventually.