Gillian just wrapped on a film called Boogie Woogie. Ironically, it
won't be out until after the X-Files film sequel, which hasn't even
begun filming yet.

From GAWS...

Gillian recently finished shooting 'Boogie Woogie', directed by
Duncan Ward.

Muse Productions describes this film as the true to life version
of the avaricious, sexually duplicitous contemporary art scene based
on the novel and screenplay by Danny Moynihan.

This ensemble piece about the London art world also stars Alan
Cumming, Danny Huston, Heather Graham, Christopher Lee, Joanna Lumley,
and Charlotte Rampling.

More information is available at Wikipedia.com.
http://en.wikipedia.org/wiki/Boogie_Woogie_(film)

No word yet on the release date.