Interesting idea. It's a great movie for sure, and still holds up today, in my opinion. When you mention "meaning" and "symbolism," these are difficult to determine without some kind of context.
I encourage you to look up some critical analysis from scholars or critics about this particular movie, and also writings about the body of work from director Gary Gray and about the actresses that interest you the most. In doing some research, you might find a particular topic that can give you some direction, and then you can build off that.
I encourage you to look up some critical analysis from scholars or critics about this particular movie, and also writings about the body of work from director Gary Gray and about the actresses that interest you the most. In doing some research, you might find a particular topic that can give you some direction, and then you can build off that.