There is a super cute doggy owned by one of the folks who is a fairly main character. Gave me the heebie jeebues as soon as I saw a dog was in the movie. BUT, Nothing at all ever happens to this doggo. :) He is brought through some dangerous stuff but never has anything bad happen at all.
Spoilers:
One character lets another character die of a gunshot wound. While another character holds another character underwater in order to drown them.