However, Gilliam's failure to complete his film resulted in the documentary filmmakers retitling their work as Lost in la Mancha and releasing it independently.

It co-stars Johnny Depp, Jean Rochefort, and Vanessa Paradis, who were cast as stars for The Man Who Killed Don Quixote.

Fulton and Pepe have made a follow-up documentary, titled He Dreams of Giants, which covers Gilliam's entire scope of work on the Quixote project.

Finding the source material written by Miguel de Cervantes too vast, Gilliam and his co-writer decided to create their own version of the Quixote story.

He was to be replaced by character Toby Grisoni, a 21st-century marketing executive thrown back through time, whom Don Quixote mistakes for Panza.

Gilliam was excited about the film, as he felt that the story of Don Quixote embodies many of his own themes (such as the individual versus society, the concept of sanity, etc.).

Jean Rochefort was cast to play Don Quixote, in preparation for which he spent seven months learning English.

The website's critical consensus is "A remarkable behind-the-scenes look at a movie that wasn't, Lost in La Mancha is an incisive, entertaining document of the difficulties inherent in the moviemaking process.

In May 2018, a few days before the premiere of The Man Who Killed Don Quixote, Fulton and Pepe said they would release a follow-up documentary, to be titled He Dreams of Giants.

[6] It would cover the entire history of the film's making, with particular focus on what happened after the events depicted in Lost in La Mancha.