1988's Die Hard beat the odds to become an action classic, a staple of 1980s cinema, and -- most improbable of all -- a holiday evergreen. 35 years after its release, Die Hard defines the era in which it was made and is good holiday viewing for anyone not especially fond of Christmas. None of it was planned that way, and right up until it opened, Hollywood dismissed it as an also-ran at best. Even the filmmakers just wanted to make an entertaining movie and had no idea of the legacy they created in the process.
Source:https://www.cbr.com/die-hard-changed-action-movies/