Part of the People's Century series, Living Longer charts the reasons why the life expectancy of the average American nearly doubled during the 20th century. In addition to information about Jonas Salk, other important innovations discussed in this film include the formation of the World Health Organization, the discovery and widespread use of penicillin, and inoculation programs. This is a fine, informative film for those with an interest in the subject matter. ~ Perry Seibert, Rovi