Is there a happier moment in movies than the beginning of Much Ado About Nothing?
Lots of nonsense (so beautifully executed) is to follow, but in this moment, everyone is happy, and excited, doing their best to look their best for each other and for the occasion, flush in victory, in health, the beauty of the day. Nothing's ever that simple any more, and it won't be for very long in this world either. But it's lovely, even for the moment that it lasts.
The rest of the movie is spectacular, too, especially in its effective juxtaposition of young and mature love. Maybe Beatrice and Benedick were played broader when the play was first performed, folks who had resisted marriage beyond their freshest years. But in this adaptation, Claudio and Hero love without knowing each other, and don't know how to discern falsehood when they're told it, or how to defend themselves when the subject of it. Better to hold out against your heart, it seems, than truth or principle, and discover it through the goodness of your friends.