Varvara (1998)

None.

Several people are shot in their mouths with a worm-like creature, in order to shut up. They don't actually get hurt or die except they don't move for a while.

A woman shoots at a group of worm-like creatures.

A man briefly dreams about being shot.

None.

Casual drinking.

Some mildly spooky content. This Russian animation can be watched by children.