lack of emotion.... (minor spoiler)
so... they get thru the tunnel, pop up to take a look... one of the guys gets munched in the first minute. the very next scene they are laughing it up and playing the record player...guess no-one will miss the guy that got munched!
its not bad, if you don't look too closely. very "journey to the center of the earth" - ish. i'm going to guess J Verne wrote his first.