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The LEGO movie was a surprisingly good for a movie based on a toy franchise. What other movies have exceeded their expectations?
(jaysbrickblog.com)
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Battleship.
Going by the strictest of interpretations of your criterion, my expectations for Battleship were "ninth circle of Hell"-abouts. The actual film was only the eight circle. Still utterly dire and worthless, but not quite as dire as I'd thought it would be.