“In ‘La Tempête,’ the much buzzed about French-language production of ‘The Tempest’ from the Montreal’s 4D Art, are 10 actors. Four of them (those playing the roles of Prospero, Miranda, Ferdinand, and an Ariel/Caliban hybrid) appear live. The six others are virtual characters, their video images (with sound) projected onto the back wall; at times, projected off curved mirrored surfaces, they look three dimensional. The high-tech wizardry is as cool as it sounds.”