Leonine Studios co-financed development and Leonines Quirin Berg and Alexander Janssen will executive-produce.
CAA Media Finance will handle the domestic rights, while The Veterans is launching international sales atCannes.
Butler and Gudegast are in post onDen of Thieves 2: Pantera.
Gerard Butler, Christian Gudegast and The Empire State BuildingGetty Images
He is currently filmingGreenland: Migration, the sequel to Ric Roman Waughs apocalyptic action movie.
Gudegast also wroteLondon Has Fallen,which starred Butler and grossed over $200M worldwide.
