Dr. Jack
- Metai: 1922
- Šalis: United States of America
- Žanras: Komedijos, Romantiniai
- Studija: Hal Roach Studios
- Raktažodis: rivalry, lawyer, doctor, poker game, invalid, escaped mental patient, fake illness
- Direktorius: Sam Taylor, Fred C. Newmeyer
- Vaidina: Harold Lloyd, Mildred Davis, John T. Prince, Eric Mayne, C. Norman Hammond, Jackie Condon