This is a game movie of Final Fantasy XIV 2.5: Before the Fall with no commentary. You get all the story related cutscenes and gameplay so you won't miss out on anything. Gameplay that doesn't add anything interesting or is unrelated to the narrative is edited out to keep the story moving.
Official Final Fantasy XIV summary:
Take part in an ever-changing FINAL FANTASY as you adventure and explore with friends from around the world. Experience all the hallmarks of the franchise - airships, chocobos, moogles, and more.
Capture device: Elgato HD60