From Access Hollywood: Former 'ER' Star Julianna Margulies Pregnant LOS ANGELES, Calif. (August 1, 2007) -- Former ER star Julianna Margulies is reportedly pregnant. A source confirmed to TV Guide that Margulies, the lucky lady who used to lock lips with George Clooney on the popular NBC medical drama, is due this winter. Margulies, who turned 41 in June, is engaged to boyfriend Keith Lieberthal, the magazine reports. Despite sporting an engagement ring, she recently failed to address the issue when asked by reporters. Its better for people to believe who Im in love with on screen, she said. The actress, who completed a run as Christophers lover on HBOs The Sopranos will star in Foxs legal drama Canterburys Law, this fall.