Genevieve Sabourin, who is on trial for stalking and harassing the former '30 Rock' star, was charged with being in contempt of court in Manhattan, New York on Wednesday morning, after she repeatedly heckled a doorman from Alec's building and her own lawyer.
The judge ordered that the French-Canadian actress, 41, be jailed for constantly shouting at witnesses during their testimonies after issuing her a warning Tuesday, after she shouted at Alec and accused him of having a "lying disease" when he denied her claims that they had sex after a dinner date in 2010 and also met in 2002, according to gossip website TMZ.com.
Sabourin argued she had a right to speak out in court because she sometimes has trouble understanding English.
During today's proceeding, Sabourin was also accused of threatening to wage a "massive destructive war" against Alec, worse than his bitter custody battle with his ex-wife Kim Basinger, if he didn't pay for her to move to New York to live with him.
The actor's lawyer submitted a series of emails that she allegedly sent him from 2011 to 2012.
One email stated: "You when (sic) on and on, on a massive destructive war with Kim .. and it will never end between you 2. Do you wishes (sic) to establish the same type of relationship with me?"
Alec's wife Hilaria Thomas is expected to testify later this week.