I was watching Sad Panda's review, when I suddenly realized it was going for an Inception thing, where the girl was diving deeper and deeper into her own fantasy/delusions. Which says to me that Inception and Sucker Punch were dueling movies.
And that irrationally pissed me off.
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There never was a post. Swamp gas from a weather balloon was trapped in a thermal pocket and refracted the light from Venus.