(CNN) - All the Money in the World may be raking it in at the box office.
But some say too little money was paid to the film's co-star Michelle Williams.
The movie had already finished filming when sexual misconduct claims prompted the replacement of one of its stars, Kevin Spacey.
Filmmakers had to reconvene the cast to re-shoot Spacey's scenes using Christopher Plummer instead.
Those re-shoots are reportedly where the gender pay-disparity emerged.
USA Today reports that Wahlberg was paid $1.5 million, while Williams got $80 a day in per diem -- totaling less than $1,000.
USA Today reports that Wahlberg's team actually negotiated the hefty fee of $1.5 million.
And apparently, Williams wasn't told.
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