The producers were going to release the film under the title "The Street Fighter", but when the Shin'ichi Chiba film of the same name came out first (The Streetfighter (1974)), they reverted to the original screenplay title.
In a 2006 interview director Walter Hill mentioned that he had been critical of the performance of Jill Ireland, who was Charles Bronson's wife at the time. When Hill went to Bronson's home to discuss this, Bronson wouldn't shake Hill's hand - he just showed Hill in and poured him a drink. Hill said that he would have liked to work with Bronson on other films, but that Bronson refused to work with Hill again.
This movie was retitled 'The Streetfighter' for its original UK theatrical release so that it wouldn't be confused with Charles Dickens 'Hard Times' story of the same name. This was despite the fact that there apparently hadn't been a filmed version of this Dickens novel for sixty years, since Hard Times (1915). However, Hard Times (1977), a new version, was made and released within a couple of years of this film debuting.
'DVD.net.au' reports that "Obtained by producer Lawrence Gordon in March 1974, 'Hard Times' was an original screenplay by Bryan Gindoff and Bruce Henstell; financed independently by tax shelter dollars, production on the film commenced later that same year, with shooting conducted on location in New Orleans, Louisiana. The film project was renamed 'The Street Fighter', however, in a surprising irony, its name was reverted back to its original title, when Gordon and Hill discovered, whilst their film was still in production, that a martial arts epic was due to be released - Shigehiro Ozawa's The Streetfighter (1974)."
New Orleans landmarks featured in this movie included the Algiers Ferry, the Chalmette Railroad Yards, Chartres Street, the Cornstalk Hotel, Desire Street, the French Quarter, the Irish Channel, Jackson Street, Magazine Street, and the St Vincent de Paul Cemetery.