"Gossip Girl" alum will play the buttoned down sister of Maggie Lawson's character
Michelle Trachtenberg, Gina Gershon, Garret Dillahunt, Michael Imperioli and Billy Campbell co-star in the film, which will hit theaters next fall
3.4 million tune in to Rob Lowe as tragic president
The actor talks to TheWrap about what's it's like to shoot JFK -- and Rob Lowe
The film's least-known lead steals the show in the network's adaptation of Bill O'Reilly's book
The Nat Geo movie will debut Sunday, Nov. 10
Lowe, who plays a president in "Killing Kennedy": "They all just are like, excuse me, bad actors who found the greatest one who ever was...
One day after National Geographic channel released a pic of Rob Lowe as JFK, we get a photo of his TV First Lady
Rob Lowe mimics JFK's official portrait in "Killing Kennedy" image
Ginnifer Goodwin will co-star as the beloved former First Lady
Hint: Gossip Girl's voice doesn't necessarily match Gossip Girl's face
In other Showtime news, "The Big C" gets an all-day marathon
"Gossip Girl" star will play a low-level dealer who steps on Nancy Botwin's territory; catfight to ensue?
Celebrating Awards season, "Family Guy" kingpin says he wouldn't tolerate "Two and a Half Men" star's behaviour on his shows; Oscar co-host Anne Hathaway dines...