Will there be a "Fifty Shades of Grey" sequel? Universal Pictures wasn't confirming on Monday that it would green light a follow-up to its newly minted blockbuster, but there are 245 million very good reasons that it will.

That's how many dollars were rung up at the global box office this weekend by the adaptation of E.L. James' erotic bestseller starring Jamie Dornan and Dakota Johnson. And since the R-rated tale of love and sado-masochistic hijinks cost just $40 million to make, the studio can count its money as it makes up its mind on the sequel.

It shouldn't be a tough call. The two stars are under contract and it's hard to imagine director Sam Taylor-Johnson wouldn't be in, so it's pretty much a given. There are no problems with plot continuity and in fact, some critics found the film's ending abrupt and suggested it was to set up a subsequent film.

Also Read: 'Fifty Shades of Grey' Hits $240 Million Globally and Shatters Overseas Record

On Monday, Universal revised its domestic estimate for the record-breaking Presidents Day weekend haul of "Fifty Shades" to $94.4 million. The numbers also will likely go up overseas, where its $158 million opening weekend haul was the best ever for an R-rated movie. It was No. 1 in 55 of the 57 foreign markets in which it debuted, and 60 percent of the people who went to the movies this weekend saw "Fifty Shades," according to the studio.

"If you look at these numbers," said Paul Dergarabedian, senior analyst at Rentrak, "you have to figure a smart move would be to make this a Valentine's weekend tradition, like candy and flowers."

Sequels with far less impressive credentials than those have received green lights, but it's hard to find films that compare with "Fifty Shades of Grey." The book trilogy on which "Fifty Shades" is based has sold more than 100 million copies in and been translated into 52 languages, giving it a unique built-in fan base for the movie. And the weekend's numbers dispel any doubts about its translation to the big screen.

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The similarly R-rated "Sex and the City" opened to $57 million in May 2008 and went on to take in $153 million domestically and $415 globally for Warner Bros. Two years later, "Sex and the City 2" debuted with $31 million and took in $95 million domestically and $193 million overseas, for a $288 million global gross.

The Valentine's Day and Presidents Day weekend made a great launch date for "Fifty Shades," and it's conceivable the studio would try to plant a flag on the weekend. Disney has done that with its Marvel superhero movies in the first week of May and animated fare around Thanksgiving.

Universal currently has an untitled animated project set for the holiday next year. It has nothing set for 2017, where Fox has already penciled in the drama "The Mountain Between Us" and Warner Bros. has an animated film.

Read original story 'Fifty Shades' Sequel? Universal Not Talking but There Are 245 Million Reasons to Say Yes At TheWrap