El callejón de las almas perdidas

Most of the early scenes were filmed after production suspended during the COVID-19 pandemic. Bradley Cooper used the time to lose 15 pounds and appear younger for the beginning of the film.

After the carnival tear down, Clem invites Stanton to travel with them 20 miles as they join another carnival. Upon arriving at the new location their dinner is interrupted when the Geek escapes. Upon capturing the Geek they return him to his cage but this is the same location they left 20 miles back at the original camp. There is no way they had time to set up this building at the new location the same night they moved. Even the side room has all the formaldehyde jars set up all on shelves.

There are no opening title crew or cast credits.

A black-and-white version, subtitled "Vision in Darkness and Light," began a limited theatrical release on January 14, 2022.

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