Angelina Jolie now claims she too was sexually harassed by Harvey Weinstein ... sources tell TMZ.

Our sources say Jolie claims in 1998, when she was doing a junket for Weinstein's movie, "Playing by Heart," she was in a hotel room and he made "an unwanted advance" toward her. She says she was taken aback and declined the advance and he backed off.

The movie was made while Weinstein was running Miramax.