Legal bills have hit “the tens of millions,” an insider says, of the Miramax co-founder. The now fallen producer has poured over his past movie contracts from jail to see if he is entitled to any dough.

In a report from PageSix, the film producer filed a lawsuit at the New York State Supreme Court this month, alleging that he is owed $2.3 million by his former partners in the 2015 Broadway musical, “Finding Neverland."

According to the source, “Weinstein has racked tens of millions of legal bills…so he could use the money.”

Weinstein is currently facing his third retrial, and NYC prosecutors said Wednesday, on a third-degree rape charge stemming from 2013.

He was already convicted of a criminal sex act against a woman in NYC and found not guilty on another charge, while continuing to appeal a 2022 sexual assault conviction in LA, where he was sentenced to 16 years in prison. (He has since then denied the charges that were filed against him.)

We hear that the former Hollywood fixture has now been working from jail on the “Finding Neverland” suit and that he met with his attorney Robert J. Hantman on Monday.

The source also adds: “Harvey told Robert, ‘While I have been in jail, I have had time to go over my old deals and realized that the co-producers owe me this money.'”

Weinstein alleges in court papers filed Aug. 5 that he was entitled to $5,750 per week on the musical, plus “a share of Net Profits equal to” 27.5% in an agreement that was never finalized.

He also alleges in court papers, according to the Hollywood Reporter, that he still has half ownership of the show, and that his partners “retained for themselves an unauthorized payment” he estimates to be worth $4.6 million, claiming he should get $2.3 million.

The defendants in the suit, NETworks Presentations and National Artists Management Company, have not responded to any requests for comment.