With only 2 days to go until the Japanese release of Persona 4: Dancing All Night on June 25, the opening movie for the game has been released.
Update (2015-06-25): Atlus has posted the official opening for Persona 4: Dancing All Night, which sounds different from the version of the opening in the game.
The in-game version of the opening song sounds slightly different:
Polygon has a higher quality version of the opening animation on their website, as well as the main menu of the English version for Persona 4: Dancing All Night.
Persona 4: Dancing All Night is releasing in Japan this Thursday, on June 25. The PlayStation Vita exclusive rhythm game has been announced for a North American release in fall 2015.