According to new court documents obtained by The Blast, Depp claimed the fight broke out after the actress spoke with his lawyers about his "intention to enter into a postnuptial agreement", which he says caused her to "go into a rage".
In the court documents, Depp claimed that he tried to "avoid" his then-wife by going to the downstairs bar in the house, but she followed him and screamed "abusively" while he "poured himself a vodka and drank it".
The actor alleged that Heard then threw a bottle at him and missed, before throwing a second bottle which smashed on the bar top, hitting his hand and leaving a cut on his finger. The court document also alleged that she "then put a cigarette out on (Depp's) right cheek".
Depp's lawyers also claimed that he was in a state of shock when he "wrote on a mirror and walls in blood and oil paint".
Heard denied the allegation, with her lawyer describing it as "absurd, offensive and categorically untrue" in a statement to People magazine.
"This photograph proves nothing — apart from the fact that Johnny Depp is desperate to throw out any outlandish allegation to deflect attention from his physical and ongoing psychological abuse of Amber Heard."
It's just the latest shocking chapter in what's been a lengthy saga between the former spouses.
Heard filed for divorce from Depp in May 2016, after just 15 months of marriage. Less than a week later, she was granted a domestic violence restraining order against her estranged husband after claiming he was "verbally and physically abusive" to her.
In August 2016 they reached a $US7 million (NZ$10 million) settlement, but earlier this year, Depp filed a $US50 million (NZ$75 million) defamation suit against his ex-wife after she wrote an op-ed for The Washington Post about her experience with abuse.