The main problem is that movies are full of all kind of technical errors. It only bothers the people that are experts in that field. This forum is populated by firearm people who can pick out errors immediately while most of the audience is enjoying the movie. I restore old Jeeps so when I watch war movies they almost never have the appropriate Jeep for the period (just about every movie gets taken apart on various antique Jeep forums) "John Wayne in a Korean War Jeep in
In Harms Way, a WWII movie) I can only imagine what other enthusiasts say about other topics. I've mellowed over the years and try to watch the story telling myself "it's probably the only piece of equipment they could find that was semi close". Sometimes it works, but my wife still has to tell me to shut up and watch the movie.