“X-Files” creator Chris Carter is in negotiations with 20th Century Fox to develop a second feature based on his long-running hit TV series, says reports. As with the 1998 film based on the show, Carter would write and produce with Frank Spotnitz. And while no casting has been decided, the project is being developed as a stand-alone vehicle for agents Fox Mulder and Dana Scully, which would mean original series stars David Duchovny and Gillian Anderson. Both have indicated a willingness to return for the new picture. After a falling out with Carter and Fox two years ago, Duchovny said he wanted out of the show and finally left for good at the end of last season, after appearing in about half the episodes. Robert Patrick, who now plays Scully’s new partner, special agent John Doggett, replaced him. In addition, Anderson has long expressed her desire to leave the show following the end of the show’s ninth season, which begins Sunday. As a result, notes variety, the plot of the picture will likely not be steeped in the elaborate “X” mythology but instead serve as a stand-alone feature. Carter and Spotnitz are expected to begin writing the screenplay within the next few months. The picture could begin shooting by late 2002, for a possible Christmas 2003 release.