Following in the unenviable footsteps of "Batman v Superman: Dawn of Justice," Warner Bros.' "Suicide Squad" plummeted 79.4 percent at the U.S. box office between its opening day and second Friday.

The David Ayer film debuted Aug. 5 with $64.8 million on its way to a record-breaking $133.7 million opening. However, that Friday figure dropped to $13 million as "Suicide Squad" entered its second frame. Variety estimates by the film will close the weekend with about $46 million, a drop of about 66 percent.

That's slightly better than "Batman v Superman," which saw a 69 percent drop in its second weekend following a $169 million opening.

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Forbes places "Suicide Squad's" second-weekend decline in line with such other superhero movies as "Green Lantern," "Man of Steel," "Watchmen," "X-Men: The Last Stand" and "X-Men: Apocalypse."

That said, "Suicide Squad" is expected to remain No. 1 at the North American box office, besting the R-rated animated comedy "Sausage Party," which is expected to close the weekend with $34 million after edging out the Warner Bros. film on Friday.

"Suicide Squad's" 10-day domestic tally should hit somewhere around $225 million, with its worldwide box office reaching $400 million. That's certainly nothing to sneeze at. However, Forbes notes that "the utter lack of legs means that the DC Films universe, three films in, is playing like a massively 'for fans only' franchise, akin to the later 'Harry Potter' movies and the 'Twilight' sequels."