These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Apollo 18
Paranoia Fuel: The movie ends with a note on how many moon rocks were given to foreign diplomats as gifts, and are now either stolen or missing. And since we know that any moon rock could be one of the alien parasites...
Special Effects Failure: The lunar landscape, landing module and suits all look fairly good... right up until the astronauts start moving, at which point it is very, very obvious they're on a soundstage. Seriously, The Adventures of Pluto Nash put more effort into simulating the effects of lower gravity on-screen.