Dark Tower is a 1987 supernatural horror film directed by Freddie Francis and starring Michael Moriarty, Jenny Agutter, Theodore Bikel, Carol Lynley, Kevin McCarthy and Anne Lockhart.

Several online sources (including IMDb and Turner Classic Movies) claims Wiederhorn was the original director, and was replaced by Francis mid-shoot.

Freddie Francis had become disillusioned with directing as he no longer wished to do cheap horror films and preferred working as a cinematographer on larger projects.

[6] Sandy Howard called Francis informing him they had lost Wiederhorn with production scheduled to begin in three weeks and after liking the script agreed to direct the film.

[6][4] Francis's dissatisfaction with the experience of making Dark Tower led to him returning to his primary role as a cinematographer, and never to direct a feature film again.