Need help from film experts.

Please tell me the name of the films by description.

1. A film about the colonists of America who lived in a fort in Canada or in the north of the United States. In the course of the film, they found a man living in a cave, and as it turned out later, he became a cannibal. At the end of the film, this man and the main character only survived in two and hunted one by one in the forests. Maybe the description does not match a little, but I think the meaning is clear.

2. A cartoon about ants who were terrorized by grasshoppers, but there was a brave ant hero who confronted the offenders, defeated them with courage and cunning).