"The Days of Wrath") is a 1967 Spaghetti Western film directed and co-written by Tonino Valerii and starring Lee Van Cleef and Giuliano Gemma, and features a musical score by Riz Ortolani.

[2] The film credits the novel Der Tod ritt dienstags ("Death Rode on Tuesdays") by Ron Barker (Rolf O. Becker) as its basis, although Valerii and screenwriter Ernesto Gastaldi have attested that this credit was primarily included to appease the West German co-producers, and that although some scenes are partially borrowed from it, the film is not an adaptation of Becker's novel.

Scott finds that Murph left him famous gunfighter Doc Holliday's gun, adjusted for quick fire, as well as some instructions on how to defeat Talby.

[6][7][8] The Italian board of censors rated Day of Anger as V.M.14, meaning it was forbidden to audiences under 14 years of age.

"[10] The release includes a shorter (by 28 minutes) cut of the film distributed internationally, and was described by Video Watchdog as "a poor re-edit of the movie that all but ruins it.

"[10] In contemporary reviews, the Monthly Film Bulletin stated that "Until about halfway through this is a quite likable variation on an old Western theme."

[11] Roger Greenspun (The New York Times) found the film to be "strange and muddled [...] very long and mostly boring, depending for its plot upon notions of class and caste that seem foreign to the genre if not to real history.

In the "Tutorship" films a younger protagonist seeks the more or less reluctant partnership of an older one, but differences of motivation eventually bring them into conflict.

[14] Kim Newman (Sight & Sound) noted that the film "unusually combines the mythic characterisation frequently found in the genre with a more nuanced, complicated vision of society and violence."

[15] Newman commented on the secondary characters as "all thing archetypes" but that Gemma, Van Cleef and Rilla are "impressive.