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The documentary "Age of Champions" delivers proof that you're never too old to compete.

The film follows competitors in the 2009 National Senior Games. They are a varied lot who include: A 100-year-old tennis champion, 86-year-old pole vaulter, octogenarian swimmers, and a team of basketball grandmothers.

The movie screens Tuesday, June 12, at 6:30 p.m. at the City Library auditorium, 210 E. 400 South, Salt Lake City.

The screening is the monthly "Science Movie Night" entry, presented by the Natural History Museum of Utah and the Utah Film Center.

After the movie, Kevin Kohl, a Ph.D. student in biology at the University of Utah, will discuss the physiology of aging and the latest science in the field.

Admission is free.