* ScienceMarchesOn: Black claims that urine is sterile. This accurately reflected scientific understanding at the time the film was made (and it's still a common claim to this day), but in recent years, studies have shown that urine isn't sterile after all. (And even if it were, it definitely wouldn't be by the time it left your body.) However, his main point — that you can drink it — is true as far as we know.