Warner Bros released a featurette trailer highlighting the mech warriors that star in upcoming blockbuster film Pacific Rim. It features Ellen McLain, voice of Portal's GLaDOS, as the voice of GLaDOS again.
McLain's voice does actually feature as an AI in the film, but not as GLaDOS. Confused? A trailer back in January used the familiar voice sampling used to create Portal's antagonist, but director Guillermo del Toro insisted that this was just an Easter egg he put in the trailer, and won't be the voice used in the film when it shows in theatres.
Which makes McLain's GLaDOS appearance here a little confusing. Either way, you can hear it at around the 1:50 mark by watching the video below.