How 44AD will be applicable it's not a business right??, it comes under profession but it is not a specified profession to apply 44ADA also. hence he should file ITR 3.
Now the answer to your question, if you do mostly wedding photography(taking just an example), you are not doing any profession related to films.. and hence you dont need to show your income under 44ADA and pay taxes on 50% of your total receipts