During production, one of the working titles for the film was Changes, which was later the name of an unrelated album by The Monkees. Another working title was Untitled. A rough cut of the film was previewed for audiences in Los Angeles in the summer of 1968 under the name Movee Untitled.
In her scathing review, Renata Adler of The New York Times commented: Head "might be a film to see if you have been smoking grass, or if you like to scream at The Monkees, or if you are interested in what interests drifting heads and hysterical high-school girls."