John N. Krier, a leading movie industry analyst whose box office reports were closely watched by Hollywood moguls and film fans alike, died Saturday of pneumonia in Los Angeles following a week of hospitalization. He was 89.

Frequently quoted by the news media, Krier was owner and president of Exhibitor Relations Co., the nation’s oldest box office tracking firm, which was established in 1974.

Krier began his movie industry career in the 1930s in the theater business. After managing a growing chain of theaters, he was named vice president and general manager of Intermountain Theatres in 1955. He moved to the ABC California theater company in 1972 and held the same title.

In 1978, he joined Exhibitor Relations, then headed by Nat Fellman, and took over as president when Fellman retired in 1982. Krier was active with Exhibitor Relations until his death.

The firm’s executive vice president, Paul Dergarabedian, was named acting president.

Krier is survived by his wife, Diane, two sons and two granddaughters.

Funeral arrangements are pending.