One of the previous reviewers, whose review garnered a "useful" label by 29 out of 29 people at the time of this writing, had the gall to correct the "thumbs up" vs "thumbs down" decision-making style of the gladiatorial arena.
This is the height of hubris. In reality, there is not a person alive today who truly knows what motion of the hand meant what in ancient Rome. The entirety of our knowledge of the "thumbs up" thing comes from a passage in a letter written in Latin where it is mentioned that at a recent gladiatorial game the writer had observed that the fate was decided in "the usual way" by means of "pressed thumb". Hollywood interpreted this as thumbs up vs thumbs down, but who the hell knows what it really means.
Where the previous author collected this notion of down meaning "spare him" and some kind of "stabbing motion" meaning "kill him" is completely mysterious and untrue. The arrogance with which he delivered the assuredly true claim forced me to correct him publicly, as his review of this film had been validated by 29 people, which by extension validated this fiction he perpetrates.