
It’s really simple: you send a query letter.
Companies DO NOT want to see your screenplay; that is the “unsolicited material” they don’t accept. They’ll accept query letters all day long.
Do your due diligence: find out who you contact, and send your query letter specifically to that person (or department). That’s the professional way to get your foot in the door and, ultimately, to get the company to ask to see your screenplay.

Unfortunately, you’re a poster child for why it’s so difficult to get manuscripts in front of agents and studios; you say you’ve been ‘ripped off’ which is a HUGE red flag and wave-off. Nobody wants to deal with a problem that could lead to a lawsuit.
In an unfortunate year of farewells, we have to add another name to websites that are no longer with us.
First and foremost, you DO NOT send an unsolicited manuscript to anyone. All they’ll do is just throw it in the trash; no reputable company accepts unsolicited material.
Writers don’t need publishing companies. They haven’t needed publishing companies for more than a decade.