The important thing is that you need a pre-approval from the "Radio and Television Bureau", and then take this pre-approval to the Industrial and Commercial Bureau to increase business projects. The local radio and television bureau can handle this approval, mainly depending on the qualifications of your employees.
But filming is more troublesome. You need to apply for a shooting license at the State Administration of Radio, Film and Television.
Just take the script to SARFT, and they will give you a shooting license number if they think it is appropriate.
Finally, if your shooting is not a commercial activity and you don't intend to release it, you don't need any formalities.
Pat and play, nobody cares.