Wasn't one of the biggest issues with the ride that your peripheral vision isn't blocked the way Universal's screen-based motion simulator rides do? If the walls of the Spider-Man ride vehicle weren't so tall the illusion would be ruined for many of the scenes... but everything I've seen for Ratatouille shows ride vehicles with fairly short side walls. Maybe it's not the biggest issue, but always seemed like an oversight to me.
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I know it's a big problem for Antarctica's screen portion. What good is a screen portion if I can see the other cars to my left and right. Plus, the edges of the screen are so well defined.
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