Being a developing Country have its advantages too.
You do not need a clearance from the Government before you can shoot a movie. You just need the permission from the owner of the exact place.
If you want to involve the whole state, you might need a permission for that. Since its just a particular, a mall, a bank, a hospital, etc. You only need the permission of the people in charge of the place.
However, if you want to go wide by using the Nigeria army battalion, or you need a massive ammunition, or you want to blow up a part of the city. You need to inform the government. But if it’s just all these normal film production, just go ahead with your thing.