I finished making a film and wanted to find a film distribution company. How much will it cost?
Find the film distribution company and contact them. You don't need to give them money.
They will show it in the cinema, then some tickets will be in the cinema, some will be in the distribution company, and then the distribution company will.
I'll send you a part, and it's OK.
If the movie is good, a company will buy your copyright.