After months of delays, Christopher Nolan’s sci-fi epic Tenet finally arrived in US theaters and generated $20.2 million over Labor Day weekend. Ticket sales, though difficult to dissect given the uncharted waters of the coronavirus era, are roughly in line with expectations for a new release during a pandemic.

The espionage thriller is already nearing the $150 million mark globally, thanks to a stronger showing at the international box office. Overseas, Tenet earned another $78.3 million this weekend, bringing its worldwide haul to $146.2 million.

Warner Bros, in a note Sunday afternoon to press, said the studio was “very pleased” with initial results, stressing that the rollout of Tenet will be “a marathon not a sprint” — meaning it doesn’t need splashy inaugural weekend grosses to justify its release.

“There is literally no context in which to compare the results of a film opening during a pandemic with any other circumstance,” the studio said. “We are in unprecedented territory, so any comparisons to the pre-Covid world would be inequitable and baseless.”

The domestic debut for Nolan’s latest includes ticket sales from preview screenings that started on Monday in the US and Canada. In pre-coronavirus times, Tenet would have seen much more substantial opening weekend figures. However, it’s launching in a vastly different environment since numerous theaters in the country are out of operation.

“With a significant number of key US states and cities still closed, this is a fair opening,” said David A. Gross, a box office analyst at FranchiseRe. “Business in the US is improving, but large numbers of moviegoers are not back yet. For now, this is as good as it gets.”

Tenet was able to play in about 2,800 cinemas across the country, a smaller footprint than normal for a wide release of this size. But Warner Bros, the studio behind the twisty thriller, is banking on it being enough to rationalise unspooling the mega-budgeted film after months of delays.

Currently, about 65-70% of multiplexes in the US have reopened, though influential markets like New York City, Los Angeles, Seattle and San Francisco are still off limits. That likely shaved millions of dollars off of Tenet’s grosses.

Drive-in theaters have been a boon for cities where indoor cinemas can’t reopen yet. However, Warner Bros issued guidelines that restricted the areas where Tenet can play outdoors.

They mandated that the film can only screen at drive-in theaters if indoor venues in that particular city are open. That means drive-ins in Los Angeles and San Francisco, both of which have been doing robust ticket sales during the pandemic, didn’t have access to one of the buzziest titles of the year.

Tenet is the first major blockbuster to debut in the US after the pandemic forced theaters to close in March. It was originally slated to bow in July but was delayed multiple times as cases of the virus continued to surge. While other anticipated titles — like Fast and Furious entry F9 and Marvel’s Black Widow — pushed their openings into late 2020 or 2021, Tenet remained fluid with the hopes of welcoming audiences back after prolonged shutdowns.

Though Tenet started playing in theaters on Thursday, Warner Bros opted not to report grosses until Sunday. Hollywood has been looking to Tenetas an indicator of the viability of the movie theater business during a global health crisis. Many exhibitors reopened their cinemas in time to screen Tenet, and they are banking on pent-up demand to see a movie on the big screen for the first time in months.

Ticket buyers who ventured out to see Tenet in theaters opted to see it in the best quality possible. Imax screens accounted for $11.1 million of global sales this weekend.

Tenet led by John David Washington and Robert Pattinson cost $200 million to make — and many millions more to globally promote. That means the time-bending thriller needs to pull in robust ticket sales to turn a profit. Audiences gave the film a “B” CinemaScore, lower than usual for Nolan’s filmography.

But without much competition from other Hollywood movies, Warner Bros is optimistic that Tenet will play in theaters for months to come.

When it comes to competition, Tenet’s biggest rival may be coming from the small screen. “Mulan,” Disney’s reimagining of the 1998 cartoon, is skipping US theaters and launching this weekend on Disney Plus. The family movie is available to rent on the studio’s streaming service for $30.

In areas where Disney Plus is not available, Mulan is opening on the big screen. The fantasy epic — directed by Niki Caro and starring Liu Yifei — drew $5.9 million from nine international markets, including Malaysia, Singapore and Thailand. Mulan opens in China and Russia next weekend.

It’s unclear if the numbers for Tenet will justify moving forward with other blockbusters until coronavirus gets under control in the US or a vaccine is developed. For now, Wonder Woman 1984, also from Warner Bros, is the next film gearing up to hit the big screen.

The comic book adventure is expected to touch down in the US on October 2.

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