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Half a Sinner
- Año: 1940
- País: United States of America
- Género: Misterio, Aventura, Comedia
- Estudio: Arcadia Pictures Corp., Universal Pictures
- Palabra clave: gangster, stool pigeon
- Director: Al Christie
- Emitir: Heather Angel, John 'Dusty' King, Constance Collier, Tom Dugan, Robert Elliott, Clem Bevans