Robert Riskin
From Wikipedia Robert Riskin (March 30, 1897–September 20, 1955) was an American screenwriter and playwright, best known for his collaborations with director-producer Frank Capra.
Magic Town
Rip Smith's opinion-poll business is a failure...until he discovers that the small town of Grandview is statistically identical to the entire country. He and his assistants go there to run polls cheaply and easily, in total secrecy (it would be fatal to let the townsfolk get self-conscious).
Meet John Doe
A penniless drifter is recruited by an ambitious columnist to impersonate a non-existent person who said he'd be committing suicide as a protest, and a social movement begins.