Don Johnson of “Miami Vice” and “Nash Bridges,” who contends he is not homosexual, allegedly had an addiction to gay pornographic films that was exposed in Globe, according to a report in the tabloid magazine. Johnson was also involved in a defamation lawsuit he filed against his plastic surgeon who made a public admission that his patient, Johnson, was not well-endowed and his then-wife Melanie Griffith “deserved much more than that.”