List of horror films of the 1920s (English Wikipedia)

Erickson, Hal. "Dr. Jekyll and Mr. Hyde". Allmovie. Retrieved August 7, 2011.
Wollstein, Hans J. "Dr. Jekyll and Mr. Hyde". Allmovie. Retrieved August 7, 2011.
Wiener, Tom. "Der Golem". Allmovie. Retrieved August 7, 2011.
Wiener, Tom. "The Penalty". Allmovie. Retrieved August 7, 2011.
Erickson, Hal. "Schloss Vogelod". Allmovie. Retrieved August 7, 2011.
Erickson, Hal. "A Blind Bargain". Allmovie. Retrieved August 7, 2011.
Erickson, Hal. "Häxan". Allmovie. Retrieved August 7, 2011.
Brenner, Paul. "The Phantom of the Opera". Allmovie. Retrieved August 7, 2011.
Erickson, Hal. "Magician". Allmovie. Retrieved August 7, 2011.
Erickson, Hal. "The Cat and the Canary". Allmovie. Retrieved August 7, 2011.
Erickson, Hal. "The Unknown". Allmovie. Retrieved August 7, 2011.
Erickson, Hal. "The Fall of the House of Usher". Allmovie. Retrieved August 7, 2011.

allrovi.com

"Haunted Castle". Allmovie. Archived from the original (DVD) on July 18, 2012. Retrieved November 28, 2011.

archive.org

Sadoul & Morris 1972, p. 48. Sadoul, Georges; Morris, Peter (1972). Dictionary of films. University of California Press. ISBN 0-520-02152-5.

archive.today

"Haunted Castle". Allmovie. Archived from the original (DVD) on July 18, 2012. Retrieved November 28, 2011.

books.google.com

Worland 2007, p. 44. Worland, Rick (2007). The horror film: an introduction. Wiley-Blackwell. ISBN 978-1-4051-3902-1.
Worland 2007, p. 41. Worland, Rick (2007). The horror film: an introduction. Wiley-Blackwell. ISBN 978-1-4051-3902-1.
Worland 2007, p. 47. Worland, Rick (2007). The horror film: an introduction. Wiley-Blackwell. ISBN 978-1-4051-3902-1.
Hardy 1995, p. 27. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hardy 1995, p. 29. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hardy 1995, p. 28. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Clark 2004, p. 13. Clark, Mark (2004). Smirk, Sneer, and Scream: Great Acting in Horror Cinema. McFarland. ISBN 0-7864-1932-6.
Hardy 1995, p. 30. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hallenbeck 2009, pp. 5–6. Hallenbeck, Bruce G. (2009). Comedy-horror films: a chronological history, 1914-2008. McFarland. ISBN 978-0-7864-3332-2.
Hallenbeck 2009, p. 8. Hallenbeck, Bruce G. (2009). Comedy-horror films: a chronological history, 1914-2008. McFarland. ISBN 978-0-7864-3332-2.
Hardy 1995, p. 31. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hallenbeck 2009, pp. 6–7. Hallenbeck, Bruce G. (2009). Comedy-horror films: a chronological history, 1914-2008. McFarland. ISBN 978-0-7864-3332-2.
Hardy 1995, p. 32. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hallenbeck 2009, p. 9. Hallenbeck, Bruce G. (2009). Comedy-horror films: a chronological history, 1914-2008. McFarland. ISBN 978-0-7864-3332-2.
Paszylk 2009, pp. 16–19. Paszylk, Bartłomiej (2009). The pleasure and pain of cult horror films: an historical survey. McFarland. ISBN 978-0-7864-3695-8.
Hardy 1995, p. 36. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hardy 1995, p. 37. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hardy 1995, p. 38. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Hardy 1995, p. 39. Hardy, Phil, ed. (1995). The Overlook Film Encyclopedia. Vol. 3. Overlook Press. ISBN 0-87951-624-0.
Munden 1997, p. 792. Munden, Kenneth White, ed. (1997). American Film Institute Catalog, Feature Films 1921–1930. University of California Press. ISBN 0-520-20969-9.

classic-horror.com

Richardson, Thomas E. "Wolf Blood". Classic-Horror.com. Retrieved July 25, 2011.

filmsite.org

Dirks, Tim. "Horror Films". Filmsite.org. Retrieved December 1, 2014.

mykkaelokuvat.com

"Rautakylän vanha parooni". Mykkäelokuvat (in Finnish). Retrieved October 24, 2021.

popmatters.com

PopMatters Staff. "PopMatters: The Man Who Laughs". popmatters.com. Retrieved January 11, 2007.

silentfilm.org

Peters, Rebecca. "Maciste all'inferno, 1926". San Francisco Silent Film Festival. Retrieved December 1, 2014.