Hollywood stars moonlight in this short subject with Fr. James Keller of The Christophers in You Can Change the World (1950). Bob Hope provides the introduction in a comic bit, and the rest of the cast includes Jack Benny, Eddie Rochester Anderson (both also along for laughs), William Holden, Paul Douglas, Loretta Young, Irene Dunne, and Ann Blyth. Though The Christophers was a Roman Catholic based group, the cast represents a non-denominational aspect to influence young people to change the world for the better by pursuing careers in public service such as teaching and government work.
Above is a press photo. And here is the link to watch the short on YouTube.