[url=http://www.gameinformer.com/b/news/archive/2013/01/05/glados-39-appearance-in-pacific-rim-is-a-valve-approved-cameo.aspx]Apparently Guillermo del Toro is a fan of Portal (not surprised). He got the actual voice actress for GLaDOS and Valve was cool with it.[/url]
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[url=http://www.youtube.com/watch?v=iKx6SDFoZa4]The movie would be so much better if it actually starred her.[/url]