The ambiguity of the ending in John Carpenter's iconic 1982 sci-fi horror film, The Thing, has captivated fans for 43 years. The mystery revolves around whether R.J. MacReady, portrayed by Kurt Russell, or Childs, portrayed by Keith David, transforms into the film's titular monster. Carpenter deliberately left the conclusion open-ended, leaving audiences guessing—until a recent revelation.

At a special 4K screening of The Thing at the David Geffen Theater in Los Angeles on March 22, Carpenter shared with director Bong Joon Ho that there is a "giant hint" embedded in the middle of the film that clues viewers into who becomes The Thing at the end. In a humorous twist, Carpenter suggested he would disclose this secret to anyone willing to send him an undisclosed sum of money "in an envelope to my house."

Carpenter also revealed that the actors themselves were kept in the dark about their characters' fates. "They had no clue," he confessed. "But they had to play it human, you see. The creature imitates perfectly. It could be one of us, it could be somebody in the audience, and there’s no way of telling. So I knew, they didn’t know."

Following the screening, indie director Joe Russo (not the MCU's Joe Russo) took to X / Twitter to share his theory on the elusive hint. Russo pointed out that MacReady is warned about the creature's ability to replicate at the cellular level, advising him to only consume items he has personally handled. However, at the film's end, MacReady shares his liquor with Childs. Russo theorizes that this act could signify MacReady's transformation into The Thing, as sharing the bottle would allow the creature to win by infecting its final adversary. "As soon as Childs drinks from the bottle, The Thing has won,” Russo asserts. “It’s beaten its most skeptical, final threat."

Carpenter's genius lies in the film's unresolved ending, leaving these theories unconfirmed. Yet, Russo provides further evidence by analyzing the film's final line, "Why don't we just wait here for a little while, see what happens?" He suggests this line fits if MacReady has already become The Thing. Russo's thread also proposes an alternative interpretation of MacReady killing The Thing: "Did you see that OR… did you watch a BETTER imitation kill a POORER imitation because it had a better chance of infiltrating society upon rescue?"

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26 ImagesSome fans found Russo's theory compelling, while others remained convinced that Childs is the true monster. "I still think it’s Childs because we don’t know his whereabouts for a long time heading into the final scene. But Keith David will tell you he’s 100% not The Thing," one fan commented. Russo responded, "Carpenter said both actors don't know... Childs always felt like a red herring to me."

Regardless of one's stance, Russo's theory offers a fascinating perspective on Carpenter's enduring mystery. Carpenter continues to engage and surprise his audience, even decades after the film's release, proving his mastery in the genre.