The Young Indiana Jones Chronicles Indiana Jones feature films, the cast and crew frequently questioned creator George Lucas about the Indiana Jones character's life growing up. During the concept stages of "Indiana Jones and the Last Crusade", Lucas and director Steven Spielberg decided to reveal some of this backstory in the film's opening scenes. For these scenes, Lucas chose River Phoenix to portray the character, as Harrison Ford believed that Phoenix most resembled Ford as a young man (Phoenix had appeared as Ford's son in "The Mosquito Coast"). This decision to reveal an adventure of a young Indiana led Lucas and crew to the idea
Indiana Jones Costume designer Deborah Nadoolman Landis noted that the inspiration for the series as well as Indiana Jones' outfit was Charlton Heston's Harry Steele in "Secret of the Incas" (1954) and called "Raiders of the Lost Ark" "almost a shot for shot" remake of the Heston film, citing that Indiana Jones was "a kinder, gentler Harry Steele": "We did watch this film together as a crew several times, and I always thought it strange that the filmmakers did not credit it later as the inspiration for the series." Many people are said to be the real-life inspiration of the Indiana Jones