The answer is one you do not want to hear but in short, no one. At least not yet. No one in the industry right now will listen to you. If you think you have a unique idea or story in the film industry it's because you have not read enough screenplays or seen enough films. You don't even know how the film industry or film distribution works to judge what the mechanism for a blockbuster film would be, why they succeed, why they may fail...nothing.
Anyway, in order to have your idea, or synopsis or screenplay heard and or read you need to be fully involved in the entertainment industry and it is an industry that is not begging for your participation beyond its desire that you buy movie tickets every weekend, eat your popcorn and watch the film. The average studio exec sends his interns home with 20-30 scripts a weekend, on top of what he or she himself needs to plow through. Scripts and ideas that have to some degree been vetted by the closed door system that is the business at large, agencies, managers,and producers with track records.
Start researching books on the film industry and how it works. If you don't put the time in to learn there's really no reason anyone will entertain the time to listen to you.