Ryan Reynolds learned a valuable lesson from one of his most notable box office flops. Following months of anticipation and hopes that it could be a summer blockbuster hit, DC's Green Lantern premiered in theaters on June 15, 2011, and had a disappointing opening weekend. Over the weeks that followed, the film barely broke even on its $200 million budget as it earned a dismal $219 million at the box office worldwide, according to The Numbers.

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