X-Files, I Want to Believe Easter Egg - Mulder's Cell Phone

At about 1:16:08 in the movie, Mulder is following the bad guy and takes out his cell phone to call Scully. If you pause and look at the names listed on the phone number screen, you will see Gillian as well as Scully right below it. When he places the call, he scrolls down to and calls the Gillian number.

Gillian Anderson is the actress that has played Scully for the TV run and the two movies.

*Edit* The cell phone doesn't say Gillian. It says Gilligan as Vince Gilligan, one of the XF writers. It also says Bowman as Rob Bowman, another XF writer.