Phenomenal and the Treasure of Tutankhamen was directed by Ruggero Deodato under the name of Roger Rockfeller.

[1][3] On his acting, Deodato mentioned that he was "too stiff, a dog of an actor; I treated him like shit on the set, but then he called me again for Zenabel.

"[4] Deodato mentioned that the producer often dealt with people who requested small roles in the film in exchange for funding.

"[4] From retrospective reviews, Roberto Curti described it as "one of the lamest, less remarkable entries in the supercriminal/superherotrend of the late 60s" with a storyline "so confused it is difficult to tell what is going on at times.

"[3] Curti noted that the best thing about the film was the score by Bruno Nicolai.