HONG KONG — The American film “Django Unchained” was abruptly pulled from theaters in China on Thursday, its opening day, a surprising move that underscored the fragility of Hollywood’s evolving relationship with the Chinese movie industry.

No reason was given for the decision to suspend “Django Unchained,” which was written and directed by Quentin Tarantino and won two Oscars in February. The move comes after some scenes were reported to have been edited to conform with the wishes of Chinese censors.

Workers at Beijing theaters said the film, which tells a bloody revenge story set in America’s pre-Civil War South, had been pulled because of unspecified technical problems.

But Mr. Tarantino’s representatives and financial backers in Los Angeles and New York on Thursday were still scrambling to learn what had gone wrong, and looking for a way to reopen their movie in what has become the world’s second-largest film market, after the United States. American film studios are seeking increased access to the vast new audience in China as a way to shore up their business, but have often been frustrated by Chinese laws, customs and tastes.