Das Experiment (aka, The Experiment)
After the "prisoners" escape, including Tarek Fahd / Prisoner #77 (Moritz Bleibtreu), a news report that plays in the end says that two people had died; Schutte (Oliver Stokowski) and the Elvis-guard, and that the researcher in charge of the experiement, Professor Klaus Thon (Edgar Selge), was to appear in court on numerous charges.
Thanks, Rob T!
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Read more about this film at The Internet Movie Database.