When the final Citizen of Earth's interplanetary research and diplomacy program finally makes first contact, he's forced to not only protect humanity, but that which makes him human: love.
This movie contains 9 potentially triggering events.
A dog bites a villager and is shot as a result. You see the gun being fired but you do not see the dog actually being shot nor do you hear noises from the dog.
A solider has what looks like a ptsd attack. He shakes and mumbles about a traumatic event he witnessed. Also, in the end a solider cries while recounting his experience in battle.