Four new additions for the self-contained thriller.

Julianne Moore (‘Carrie’), ‘Downton Abbey’ actress Michelle Dockery, Scoot McNairy (‘Argo’) and Nate Parker (‘Arbitrage’) have joined Liam Neeson on the cast of Jaume Collet-Serra’s gritty action thriller ‘Non-Stop.’

Set aboard an international flight, the thriller centres on Bill Marks (Neeson), a worn-out air federal air marshal who finds himself in the middle of a unique terrorist attack. Just after takeoff Marks starts to receive text messages from someone claiming to be on the same flight, and who is threatening to kill a fellow passenger every 20 minutes. Racing against the clock, Marks must identify and stop the killer.

‘Non-Stop’ is scheduled to begin shooting in the coming weeks with a screenplay by John W. Richardson and Chris Roach. Joel Silver is producing for Silver Pictures along with Andrew Rona and Alex Heineman. Financing and distribution will be handled by StudioCanal.