What movie was it? If it was Pacific Rim as it sounds like, then that reaction could make sense. Guillermo Del Toro (Hellboy, Pan's Labyrinth) is directing it.
It might not be that movie though. Still, have you seen the top raved about films on HN (there was a frontpage show hn on this recently)? Pretty obvious, typical choices. And there is nothing wrong with that. I'm cool with your reddit opinions. Just weird to use comments about a movie as an example against reddit and then swing over to endorsing HN.