Just a quick guide to getting the skits you need for titles. If you're looking to see All the skits in the game, this guide should help you with that (good luck).
MISSABLE
Mizuho, the Mystical Village
On your first visit to Mizuho.
don't leave until you see the skit. there are a few to get through
MISSABLE
Poke Poke
Before you enter the Temple of Lightning.
you might have to wait around for it to trigger
MISSABLE
Paw
Before you enter the Temple of Earth.
if you miss Poke Poke, you can't get this skit
Childhood Memories
After recieving the Material Blades, if you chose Kratos in Flanoir.
can't miss it, it plays automatically