One quick OT comment. Great movie with 2 completely different levels. You can watch it as a fun and mindless, but very entertaining science fiction romp.
Or you can delve a little into the anti-fascist and anti-authoritarian aspects. There is some very real **** imagery as well as well written, not completely obvious, ****, or at the very least authoritarian/fascist dialogue. If you look at it from this level, he is mocking the authoritarian aspects, and the whole concept of the war against the “bugs”. From this viewpoint it’s a slightly complex movie.
The director i believe is a Dutchman who would either remember, or through his parents been told about the occupation of Holland. If I am correct about him and his backstory
The author of the book was also a strong anti-establishment guy, but more on the conservative end of the political spectrum. If I remember correctly about those two men.