"Peter and the Starcatcher:
This. Simple stage magic at its best.
The pool scene in Let the Right One In was great, but I don't understand why everyone thinks he needs to sneak a breathe. When I saw it, the scene lasted...45 seconds? Maybe a minute? That's not an unrealistic amount of time to hold one's breath.
Also, count me in those that loved the Matilda chalkboard scene. While watching it I thought it had to be a screen, but it was just too real looking. Really well done. Especially since the only other "magic" we see her do is tipping the cup which, while fun, is a lot less impressive stage magic.