Scorsese was initially reluctant to develop the project, though he eventually came to relate to LaMotta's story. Schrader re-wrote Martin's first screenplay, and Scorsese and De Niro together made uncredited contributions thereafter. Pesciwas an unknown actor prior to the film, as was Moriarty, who was suggested for her role by Pesci. During principal photography, each of the boxing scenes was choreographed for a specific visual style and De Niro gained approximately 60 pounds (27 kg) to portrayLaMotta in his later post-boxing years. Scorsese was exacting in the process of editing and mixing the film, expecting it to be his last major feature.
Raging Bull premiered in New York on November 14, 1980 and was released in theatres on December 19, 1980. The film had a lukewarm box office of $23.4 million against its $18 million budget. The film received mixed reviews upon its release; while De Niro's performance and the editing were widely acclaimed,it garnered criticism due to its violent content. Despite the mixed reviews, the film was nominated for eight Academy Awards at the 53rd Academy Awards (tying with The Elephant Man as the most nominated film of the ceremony), including Best Picture and BestDirector, and won two: Best Actor for De Niro (his second Oscar) and Best Editing.
After its release, Raging Bull went on to garner a high critical reputation, and is now often considered Scorsese's magnum opus and one of the greatest films ever made. In 1990, it became the first film to be selected in its first yearof eligibility for preservation in the United States National Film Registry by the Library of Congress, as being "culturally, historically, or aesthetically significant", and the American Film Institute ranked it as the fourth-greatest American movie of alltime.
By the end of the 1980s, Raging Bull had cemented its reputation as a modern classic. It was voted the best film of the 1980s in numerous critics' polls and is regularly pointed to as both Scorsese's best film and one of the finest Americanfilms ever made.
Source: Wikipedia.