You don’t start turning a real profit until your business has been successful for about 10 years. Think about how much money it would cost for supplies, furnature, staff, paying what theatre’s have to pay to get movies and play them, etc. It would take tons of money to get that idea started. It sounds like it has alot of potential but I can assure you that you won’t be turning a huge profit in 6 months. It could be less than 10 years of course but try and be realistic 
Good luck!!