It's not entirely clear how Scott ("Blade Runner") will go about inserting Plummer into Spacey's scenes in such a short amount of time, but some use of digital effects are is good bet. Scott is also determined to to keep the film's December 22 release date.
They've also confirmed that another Spacey project, a Gore Vidal biopic, will not be released. He took over Spacey's role as J. Paul Getty, the industrialist who was named by the the richest living American in1966 by the Guinness Book of World Records.
He's going to be replaced by Christopher Plummer. The family chose to come forward, she said, after others went public with allegations of sexual misconduct against Spacey and other celebrities.
The film is based on the true story of the kidnapping of 16-year-old John Paul Getty III in 1973 and the desperate attempt by his mum to convince his billionaire grandfather to pay the ransom.
The actor has since been accused by more than dozen men of either sexually harassing or assaulting them.
He apologized on October 30 to actor Anthony Rapp, the first person to accuse Spacey of sexual assault.
The 58-year-old actor recently faced allegations of sexual assault from Heather Unrah, who in a press conference claimed Spacey grabbed her 18-year-old son's genitals inside a bar on Nantucket Island.
USA network Netflix has axed further production of Mr Spacey's House of Cards drama, the International Academy of Television Arts and Sciences announced it would no longer give the actor a special Emmy award, and his agent and publicist dropped him as a client. "I didn't really care for the way he was behaving toward the other people on set".