Janssen hit her cinematic stride with 1995's GoldenEye, playing villainess Xenia Onatopp. The star's subsequent turn as comic-book heroine Jean Grey (aka Phoenix) in the big-screen trilogy X-Men (2000), X2: X-Men United (2003) and X-Men: The Last Stand (2006) introduced Janssen to a new legion of fans and brought her lasting fame.
Among Janssen's other notable credits are Rounders (1998), Celebrity (1998), Love & Sex (2000), I Spy (2002) and the hit cable drama "Nip/Tuck." In 2012, she joined the cast of the Netflix original series "Hemlock Grove."