Sibrel has been director of TV commercials, and is sometimes identified as a maker of "documentaries" in respect of his self-released moon landing denial films, though other sources point out the personal distribution, limited release, and style and content call into question placing Sibrel's work in this genre of filmmaking (e.g., with St. Petersburg Times and "The New York Times" placing the word documentary in quotation marks in some of their reports). This concern relates in part to Sibrel's record of misrepresenting his identity to the subjects he attempts to interview, notably repeated attempts involving former astronauts including Buzz Aldrin, Neil Armstrong, Alan Bean, Eugene Cernan, and Edgar Mitchell (where Sibrel posed as filmmaker associated with the History Channel ).