Well, not quite. But a couple of brainiacs in Europe have developed a cool technique: They use a non-turbulent airflow to shoot a thin layer of fog vertically. Then you project a video image onto it and -- voila! A screen that you can walk through.

Very cool -- except that, as I read on their website:

The famous Finnish mime actor Markku Laitinen had his premiere of "Pierrot in Globalisation" in Joensuu, Finland on June 7th, 2003. He is the world's first artist, who has integrated the fog screen into his performance (a sample video).

I love this technological idea. But ... mimes? That just ain't right.

(Thanks to Wired News for this one!)