Joseph Gordon-Levitt Reaches Terrifying New Heights In This First Trailer For 'The Walk'

This does not look safe.

If you're a Joseph Gordon-Levitt fan, but you're not a fan of heights, then you're in line for some serious cognitive dissonance.

Gordon-Levitt is the star of the latest movie from "Cast Away" and "Flight" director Robert Zemeckis, "The Walk," all about the true story of Philippe Petit, the French high-wire artist who strung and walked across a wire between the Twin Towers in 1974.

The death-defying stunt has been well chronicled on film already, most notably in the documentary "Man on Wire," but Gordon-Levitt and Zemeckis are looking to retell the tale in eye-popping IMAX and 3-D — and just the teaser trailer alone is enough to put your stomach in knots, if heights are not your thing.

See for yourself:

"The Walk" hits theaters on October 2, 2015.