11:37 AM PT -- A source close to Amber tells TMZ ... "Beneath all his smirks/smiles, there is the serious matter of abuse. Behind all his laughter, there is the serious matter of violence against women. Beyond all his lawyer's misdirecting and misleading, there is only one pivotal question: Does Amber Heard ... or any woman who speaks out ... have the right of Freedom of Speech as enshrined in the First Amendment?"
Johnny Depp's team is trying to tear apart Amber Heard's testimony ... claiming it's nothing more than performance art.
Johnny's spokesperson tells TMZ ... their prediction during opening statements has now come to fruition ... that Amber has been "preparing to give the performance of her life in this trial." They now say their prediction was dead-on accurate.
They claim her stories of abuse have evolved with "new and convenient details" as time goes on. By contrast, they say Johnny's "recollections have remained exactly the same throughout the 6 painful years since her first allegations were made."
They also say the upcoming cross-examination from Johnny's team will be telling, as Depp's attorneys zero in on alleged inconsistencies in her stories. As you know, Amber wrapped up day 2 of her testimony ... where she told the jury he called her a "nagging bitch" and a "c***."
She also said he threatened to kill her multiple times ... once over Christmas on his island in the Bahamas. She alleges he said he'd end her life if she ever embarrassed him in front of his kids again.