Woosh woosh! The Avengers: Age of Ultron trailers have been awesome and action-packed and have certainly done their job of getting us properly amped for the May 1 release. But you haven’t seen anything until you’ve seen this version, which features little kids providing all of the dialogue and sound effects. Ultron is pretty darn cute when he’s voiced by a kid. Plus, there’s so many woosh sounds! Woosh!

Mashable posted this Avengers: Age of Ultron trailer which has been dubbed over with kids who deliver the real dialogue word for word, and as you can imagine (or just see for yourselves in the video above), it’s very delightful. So delightful, in fact, that the Hulk himself tweeted about it, calling it the “sweetest” trailer he’s seen. (P.S. Did you know Mark Ruffalo has an official Tumblr? He does.)

There’s something really simple and sweet about having a bunch of kids read mature dialogue that originates from adults. Hearing kids talk like grown-ups is always cute, but even cuter when they’re doing it for Avengers: Age of Ultron — it’s like watching kids play with action figures in the most professional way possible.

Now we wait for someone to dub all two hours of Age of Ultron with little kids talking. We’d totally watch it.

Avengers: Age of Ultron hits theaters on May 1.