[The founder of the #MeToo movement said the latest accusations should not discredit it.]

The announcement came just a day after The Times reported that Ms. Argento — a leader of the #MeToo movement who was among the first women to publicly accuse the producer Harvey Weinstein of sexual assault — arranged to pay $380,000 to Mr. Bennett, who said she had sexually assaulted him in a hotel room in Marina del Rey, Calif., an unincorporated, upscale harbor community on the west side of Los Angeles County.

Documents obtained by The Times outline the allegations and the subsequent arrangement for payments. The documents include a selfie dated May 9, 2013, of Ms. Argento, who was 37 at the time, lying in bed with Mr. Bennett, who was 10 months shy of being 18, the age of consent in California. On that day, the pair, who had acted together, met for a reunion in Ms. Argento’s room at a Ritz-Carlton in Marina del Rey.

A notice of intent to sue said that after Ms. Argento was left alone with Mr. Bennett, she gave him alcohol to drink and showed him a series of notes she had written to him on hotel stationery. Then she kissed him, pushed him back on the bed, removed his pants and performed oral sex, the document says. She climbed on top of him and the two had intercourse, the document also says.

The Times has tried repeatedly to obtain a response to the allegations from Ms. Argento and her representatives but has been unsuccessful. Mr. Bennett, who lives in Los Angeles, has not yet agreed to be interviewed.

Reactions to the revelations have poured in since the allegations surfaced, with many, including a lawyer for Mr. Weinstein, accusing Ms. Argento of hypocrisy.