The secret ruling was made last year, but became public on Monday after lawyers for the studio, MRC, filed a court petition to confirm the award.
The actor has faced several sexual assault allegations since 2017.
He has denied any wrongdoing.
Mr Spacey, 62, lost his starring role as a conniving politician in House of Cards, and has kept a relatively low profile since being accused of creating a "toxic" work environment on set by allegedly making crude comments and touching young staffers without their consent.