Gillian Anderson, right

Gillian Anderson says getting back into Dana Scully's character for "The X-Files: I Want to Believe" was harder than she expected.

"It was a little odd," Anderson told Newsweek. "It was more disconcerting than I anticipated. I expected it to be a breeze. But I tried so hard since the series ended to do things as different as possible from the character.

"When I was faced with making acting decisions on that character again, my brain started backfiring and internally combusting," she said.

"The X-Files" ran from 1993-2002 on the Fox network. Anderson reunites with co-star David Duchovny for "The X-Files: I Want to Believe," the second feature film spun off from the paranormal series.