According to The Blast, Elsie Hewitt has asked the Los Angeles Police Department to turn over all information about past domestic violence accusations against Phillippe, 44.
But he's trying to block her from getting the documents, court papers indicate.
Model Hewitt initially filed a $1 million suit against the Shooter actor in September 2017, alleging Phillippe grabbed her upper arm and then threw her down a flight of stairs on July 4 while she was picking up some of her belongings at the actor's home. She is suing for assault, battery and intentional infliction of emotional distress.
Phillippe has denied all allegations of assault and accused his ex-girlfriend of trying to extort him with false allegations.
According to court documents obtained by The Blast, Hewitt wants a judge to allow her to seek records from the LAPD relating to any restraining orders, police reports or claims of domestic violence made against Phillippe in the past.
Hewitt is particularly interested in claims allegedly made by Phillippe's ex-fiancée, Paulina Slagter.
Phillippe has said in the papers that Hewitt has no right to access the records.
Plus, the star, who was married to Witherspoon from 1999 to 2007 and is the father of her daughter Ava and son Deacon, claimed to have never been investigated by the police.
However, Hewitt wonders why Phillippe is trying to block her LAPD records request.
During the deposition, Phillippe accused Hewitt and Slagter of colluding together and believed Slagter violated a non-disclosure agreement they had by talking to Hewitt.
Phillippe has denied the incident and all of the allegations in Hewitt's suit.
In court documents filed in November 2017, the actor said Hewitt was the one who entered into his home in the middle of the night without his permission. He contended that Hewitt fabricated the whole story in order to extort money and gain publicity for herself and her modeling career.
Hunky Phillippe was a Hollywood golden boy when he hooked up with America's sweetheart Witherspoon.
But REELZ's recent docuseries Reese Witherspoon: The Price of Fame revealed that Phillippe and the Oscar-winning actress broke up because he felt "overshadowed" by her fame.
After Witherspoon split from Phillippe, she went on to marry agent Jim Toth in 2011.