Geena Davis[1] committed the unholiest of sins -- she lied to Oprah[2] -- or at least she said so under oath in her nasty marriage/breakup lawsuit.

We've been reporting on the lawsuit between Reza Jarrahy and Geena for awhile ... he filed for divorce and asked for spousal support and a property split. She says you can't have a divorce if you were never married, and he ain't entitled to what he's asking.

They allegedly tied the knot way back in 2001, but Geena says they never got a marriage license and never intended to officially get married.

Reza, a prominent L.A. surgeon, filed for divorce[3] last year, and we've now seen Geena's deposition, in which she says, "We intended to become married well before I was pregnant ... we did not discuss having a false marriage ... we intended to become married -- to be really married, yes, we did intend that."

During the depo, Reza's lawyer, Stephen Kolodny, brought up an episode of Oprah in which Geena was a guest. Kolodny said, "You bragged about your marriage to Reza and what a great husband he was, correct?" She said she hadn't seen the episode and didn't recall specifically, but she assumed his description was correct. Then Kolodny drops the hammer -- "You lied to Oprah?" She responded, "Yes."

Geena also concedes she hired a wedding planner, caterers, and even had a Catholic priest participate in the ceremony, exchanging vows and rings.

Geena claims in her legal docs they never intended to have a legal wedding[4]. She says

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