Photo:Jon Kopaloff/FilmMagic

Jon Kopaloff/FilmMagic
Kevin Costnerclaims his estranged wifeChristineis refusing to leave the home they share amid their divorce, according to TMZ.
The documents further allege, according to TMZ, that Christine, 49, has not budged in an effort to force Costner, 68, to agree to “various financial demands.”
A source tells PEOPLE that Costner has given his ex $1 million on top of what is required in their prenuptial agreement.
“He has gone above and beyond what the prenup specified,” says the source.
The documents also state that Costner is willing to contribute a $10,000 advance toward Christine’s moving costs and $30,000 per month for a rental home, per TMZ.
An attorney for Christine has not returned PEOPLE’s request for comment.
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Kevin Costner and Christine Baumgartner in 2022.Rich Fury/VF22/Getty

A rep for theField of Dreamsactor confirmed to PEOPLE on May 2 that he and his wife of 18 years were breaking up aftershe filed for divorce. Christine listed their date of separation as April 11, and cited irreconcilable differences.
Costner, in his response filed afterward, also asked for joint custody and cited irreconcilable differences. The actor/director’s filingalso mentioned a prenup, in regards to spousal support, legal fees and properties.
They also add, “Pursuant to the terms in Paragraph 9.A. of the parties' Premarital Agreement, Petitioner to vacate Respondent’s separate property residences.”
Gonzalo Marroquin/Patrick McMullan via Getty Images

In a statement last month, Costner’s rep said, “It is with great sadness that circumstances beyond his control have transpired which have resulted in Mr. Costner having to participate in a dissolution of marriage action.”
A source then told PEOPLE that divorce wasn’t Costner’s idea: “Itwas not anything that he wantedor sought, and if he could change the situation, he would.”
Kevin Costner and family in 2015.Gregg DeGuire/WireImage

“But this is not what he wanted,” the insider added. “He knew that Christine was unhappy, though.”
While Christine “wants them to spend family time at their Santa Barbara home,” the source continued, “during filming, Kevin is not around very much.”
“Hisabsence has been very hard for her,” the insider said. “Christine doesn’t want him to throw himself into another project. He has been obsessed with filmingHorizonsince last year. She wasn’t happy about it.”
The pairmarried in September 2004andshare three kids: sons Cayden, 16, and Hayes, 14, plus daughter Grace, 13. He is also dad tofour older children from previous relationships: Annie, Lily, Joe and Liam.
source: people.com