
Kingsman: The Secret Service, which was the other big film this weekend with $36 million at the box office, gets a B+.

Audiences may have paid their money opening weekend but they're not overly-enthused about the film. There's a good chance Fifty Shades won't have that kind of staying power. The final Twilight movie, Breaking Dawn Part II was the highest-grossing of the franchise with $830 million at the global box office.

The film will have to hold strong at the box office in order to approach Twilight levels (even the first Twilight movie earned $392 million at the global box office) and each subsequent film will have to earn more at the box office. While some have said Fifty Shades could become the R-rated equivalent of Twilight, that seems like a stretch. Although both lead actors Dakota Johnson and Jamie Dornan seemed like they absolutely hated filming the first movie, a nice bump in salary should help get them back for the next two films. Universal has a lock on this market for the next few years thanks to the two sequels to Fifty Shades from author E.L. In the photos, which can be viewed on Express, Johnson and Dornan were spotted making out under an umbrella. Based on the photos from the set, things are definitely going to get heated up in the highly anticipated sequel. Today executives are no doubt screaming at their development worker bees to find the next Fifty Shades. The two Fifty Shades of Grey stars are back for their roles as Christian Grey and Anastasia Steele. It will be almost impossible to find a similarly successful book to base future films on but there are plenty of Fifty Shades clones with unsubtle names from best-selling authors like Tame Me, Taking It All and Bared To You. While I would like to hope that the lesson Hollywood takes away from the film is that female directors making movies aimed almost squarely at women can make boatloads of money, it's more likely that other studios will just look to replicate the Fifty Shades template of an inexpensive soft-core film hitting theaters in February. This year's annual Nicholas Sparks film, The Longest Ride, will hit theaters in April instead of February this year.

Fifty Shades of Grey changed the equation before it even hit theaters. Films like The Vow and Safe Haven were the go-to February romance films. For years the most successful Valentine's Day movies have been based on Nicholas Sparks books.
