International Coproduction: For the second season, production moved from Utah to Serbia (although the state's film commission remained involved). This explains why the sets look noticeably different.
The Other Darrin: Season One had Naya played by Medalion Rahimi. From Season Two on, she was replaced with Amita Suman.
Production Posse: Reece Ritchie, Tiana Upcheva and several other actors from this show all went straight on to appear in The Ark (2023).
Real-Life Relative: Zed and Corven are brothers that are played by real-life brothers Reece and Ross Ritchie.
Benjamin D. Keating was 27 during the time the movie takes place. Orlando Bloom was 41 when he played him.
Scott Eastwood was 32 when he played the 28 year-old Clint Romesha.
No Budget: Sources put the movie's below-the-line costsnote The money used to actually make the movie and pay the production crew, as opposed to above-the-line costs which concerns paying the creative crew such as the actors, writers, director, etc. at less than $5 million, which is very low for an action-packed war movie.