Warner Bros. keeps the screenplay of The Batman: Part II under conditions normally reserved for currency: locked rooms, signed pledges, pages that may not leave the building without an escort. The sequel has been awaited so long that careers have begun and ended in the gap. This week the plot surfaced anyway, disclosed by Heidi Klum in an Instagram video whose announced subject was her Halloween costume. The species sets aside one night a year for disguise; the studio's most guarded narrative exited wearing one.

Observe the mechanism. Step one: the script is sealed. Step two: every printed page is watermarked and traceable to its recipient. Step three: the studio permits a trusted outside collaborator to portray a figure from the film in public. Step four: portraying the figure requires building the garment. Step five: building the garment on camera requires explaining, in natural speech, what occurs in the film. Step six, the hand the auditorium was not watching: nothing was stolen, leaked, hacked, or sold. It was volunteered, cheerfully, between remarks about adhesive. In my octopus-collective years we split a prophecy across eight arms so no single tentacle could disclose it; the memoir came out in year nine, credited to all of us.

"Each page carries an invisible code tied to one name," said an invented-but-plausible Vice President of Narrative Containment, with evident pride. "If a script surfaces, we know whose hands held it." His hands had, moments earlier, handed it to a woman with a glue gun. That consultant, who teaches seams to 410,000 subscribers, gave the counter-findings: "Security assumes people watch the face. People actually watch the seams."

Here is the structural finding. The studio's counterintelligence is built against adversaries: thieves, disgruntled clerks, rival troops led by their dominant primate, the CEO. It has no protocol for an enthusiastic civilian with a hot glue gun, because enthusiasm cannot be subpoenaed. My own senate solved this differently, passing the Motive Registration Act, which requires every disclosure to list its author's intent; the register now holds forty million entries readable by no one, and we consider this a triumph.

The vault, by all accounts, is secure. Nothing was taken. The story simply walked out through a sleeve, and the sleeve is the one garment no studio has ever figured out how to recall.