Legal Question in Civil Litigation in Florida

You must prove it false. If it is blatantly false, it's perjury. But, as the plaintiff, it is your burden to prove to the court what is true or false. Work on proving your case and impeaching the witness rather than having him/her prosecuted for being a criminal liar. Read up on impeachment. Call me if you want an attorney.

I can't really answer this without knowing if the trial date has already passed. If not, go to court and expose the false information with facts that show your side of the story.