Wiktionary
health warning
n. 1 An official edict that a particular substance or activity is dangerous. 2 (context colloquial English) An indication or admission that an opinion might be biased.
Wikipedia
Health Warning
Health Warning (alternate titles: Da Lei Tai, Da Lui Toi, Future Flash Kung Fu, Digital Master) is a 1983 Hong Kong film directed by Kirk Wong. It is a dystopian sci-fi kung fu film set in the future.