Don Johnson (left) and Bruce Willis laughing together as they leave Nicky Blair’s restaurant in Los Angeles, June 2, 1987. Getty Images ...

Bruce Willis was once one of Hollywood's most in-demand actors, but his health issues saw his career - and his life as a whole - come to a grinding halt.

Don Johnson has been friends with Bruce Willis for decades and reminisced about the early days of their friendship amid the star’s dementia diagnosis.

Bruce Willis plays Detective John Hartigan, the protagonist of the only story told in two parts. It is one of the most stylish action movies ever made, and perhaps Willis' best in the genre ...