I just saw once again Kubrick's 2001: A Space Odyssey and noticed something I hadn't given so much attention in my previous viewings. Namely, the fact that all main characters are shown, at some point, eating and this is a human activity which is shown several times throughout the movie.
The apelike men eat plants first then raw meat, meals are served aboard Floyd's flight to the moon and he has lunch also on the space station (we don't see it, but this is implied by what he says to his Russian friends when he meets them). Then Floyd has also a snack while travelling from Clavius to the TMA site and we see also Bowman and Poole eating a meal aboard the Discovery. Finally, in one of the final scenes in the white hotel room at the end of the movie, an aging Bowman eats a comfortable meal before seeing himself dying in the bed. I may have forgotten other instances.
While the first occurrence of eating, In the Dawn of Man segment--is certainly functional to the story, as it shows how man moved from a vegetarian diet to one rich of meat, the other instances seem more perfunctory and accidental, even the last one. My idea is that eating induces an idea of normality and Kubrick maybe used it as a means to enforce a certain lack of exceptionality of the situation, even when men are travelling on the moon, towards Jupiter, or bound in a mysterious, likely alien, artifact. Would you think that this interpretation is correct or is there something more that could be said?