Know For Sure (1941)
A 1941 film encouraging people to seek treatment if they had, or might have had, syphilis.
- Country : United States of America
- Genre : Drama
- Studio : Research Council of Academy of Motion Picture Arts and Sciences, United States Public Health Service
- Director : Lewis Milestone
- Cast : Ward Bond, Joseph Crehan, Samuel S. Hinds, Tim Holt, Edwin Maxwell, Etta McDaniel