The beautiful actress was romantically linked to such names as actor Josh Charles (born on September 15, 1971; dating in 2000), The Rocketeer costar Billy Campbell (born on July 7, 1959; together 1990-1995; engaged in 1991) and photographer David Dugan (gave her one son)

Some of the additional credits of Jennifer include the Disney's 1930s family action-adventure Rocketeer, The (1991) ; the comedy Career Opportunities (1991); the love story Seven Minutes in Heaven (1985); and Jim Henson's elaborate fantasy-adventure Labyrinth (1986), in which she starred opposite David Bowie and a crew of Muppets.

Jennifer met actor Paul Bettany, born on May 27, 1971. The couple decided to exchange wedding vows in a private ceremony in Scotland on January 1, 2003, and welcomed their first son, Stellan Bettany, on August 5, 2003. Jennifer also has another son, Kai Dugan, born in July 1997, from her previous relationship with photographer David Dugan.