Susan Sarandon -- My Moneyman Screwed Me Out of Millions

Susan Sarandon claims she was betrayed by her former business manager who lured her into investing more than $10 MILLION in a real estate deal the manager was using to line his own pockets.

Sarandon has filed a lawsuit -- obtained by TMZ -- in which she claims her moneyman Richard Francis convinced her to invest a huge sum of money in a real estate partnership. Sarandon says unbeknownst to her ... Francis and his son had a huge stake in the venture.

Sarandon put more than half the value of her portfolio in the real estate venture -- sources tell us somewhere between $10 and $20 MILLION.

The actress fired Francis last year and then says she discovered 3 shocking things -- Francis had a secret stake in the deal, there was no liquid cash in the venture, and if she wanted out she would get only 50 cents on every dollar she invested.