Q:Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Who is watcking Habeas Corpus? Title: The Player Movie plot: Griffin Mill (Tim Robbins) is a Hollywood studio executive dating story editor Bonnie Sherow (Cynthia Stevenson). He hears story pitches from screenwriters and decides which have the potential to be made into films, green-lighting only 12 out of 50,000 submissions every year. His job is threatened when up-and-coming story executive Larry Levy (Peter Gallagher) begins working at the studio. Mill has also been receiving death threat postcards, assumed to be from a screenwriter whose pitch he rejected. Mill surmises that the disgruntled writer is David Kahane (Vincent D'Onofrio). Mill is told by Kahane's girlfriend, June Gudmundsdottir (Greta Scacchi) that Kahane is at a theater in Pasadena. Mill pretends to recognize Kahane in the lobby, and offers him a scriptwriting deal, hoping this will stop the threats. The two go to a nearby bar where Kahane gets intoxicated and rebuffs Mill's offer; he calls Mill a liar and continues goading him about his job security at the studio. In the bar's parking lot, the two men fight. Mill goes too far and accidentally drowns Kahane in a shallow pool of water, then stages the crime to make it look like a botched robbery. The next day, after Mill is late for and distracted at a meeting, Studio chief of security Walter Stuckel (Fred Ward) confronts Mill about the murder and says that the police know Mill was the last one to see Kahane alive. At the end of their conversation Mill receives a fax from his stalker. Thus, Mill has killed the wrong man, and the stalker apparently knows this. Mill attends Kahane's funeral and gets into conversation with June. Detectives Avery (Whoopi Goldberg) and DeLongpre (Lyle Lovett) suspect Mill is guilty of murder. Mill receives a postcard from the writer suggesting they meet at a hotel bar. While Mill is waiting, he is cornered by two screenwriters, Tom Oakley (Richard E. Grant) and Andy Sivella (Dean Stockwell), who pitch Habeas Corpus, a legal drama featuring no major stars and with a depressing ending. Because Mill is not alone, his stalker...
A:
Studio power players.