Topher Grace and Michelle Dockery have joined the cast of 'Flight Risk'.The duo have been tapped to star alongside Mark Wahlberg in the suspense thriller that is being directed by Mel Gibson.In the movie, Wahlberg portrays a pilot transporting an Air Marshal (Dockery), who has been tasked with accompanying a fugitive (Grace) to trial. As they cross the Alaskan wilderness, tensions rise and trust is put to the test as not everybody is who they seem.The flick is Mel's first time behind the camera since the Oscar-nominated 2016 war drama 'Hacksaw Ridge' and marks a reunion for him and Wahlberg after they starred together in 'Father Stu' and collaborated on the 'Daddy's Home' series.Lionsgate movie chairman Joe Drake said when the project was announced last year: "We love the undeniable electric pairing of Mel Gibson and Mark Wahlberg."These world-class talents combining for this dynamic,...