Gillian Anderson has urged fans to demand a new 'X-Files' movie.

The actress, who starred alongside David Duchovny in the cult classic TV show and two movies, is interested in starring in a third feature film based on the show but thinks fans need to express their interest to movie studio 20th Century Fox in order to make it happen.

She said: ''If it takes fan encouragement to get Fox interested in that then I guess that's what it would be.''

Meanwhile, Duchovny added: ''All the principals are on board. Gillian and I want to do it, so it's really up to 20th Century Fox at this point.''

The duo starred as FBI agents Dana Scully and Fox Mulder in the hit sci-fi show between 1993 and 2002, and also reprised their roles on the big screen for 1998's 'The X-Files' and 2008's 'The X-Files: I Want to Believe'.

Show creator and writer Chris Carter previously hinted at ideas for a proposed third film, suggesting it would deal with the aftermath of an ominous day often mentioned in the TV show - December 22, 2012.

He said: ''It's really up to 20th Century Fox, whether they have the will to do it. I think all of us are interested in putting the band back together. I have an idea for a third movie in my head. The colonisation date has passed and that is something we wouldn't ignore. For the second movie, we only had the budget for a standalone story, but we want to go back to the mythology.''