An organiser of a screening of The Miracle Worker says Oscar-winning actress Patty Duke, who has played a pivotal role in the movie, decided to leave the event because of stomach pain.

Duke, 67, was taken to the Nebraska Medical Centre on Friday by a private vehicle after he complained of stomach pain.

Organiser Bruce Crawford later told reporters that the medical condition of the actress was stable but she has been asked to come for more tests on Friday night after she reported the pain.

Before going to hospital, Duke delivered a speech at Omaha's Joslyn Art Museum, where The Miracle Worker was shown. The movie tells the story of tutor Anne Sullivan, who has played an important role in helping Helen Keller when she was growing up.