Teenage Mutant Ninja Turtles has surprised with an opening day gross of $25.6 million, $4.6 million of which came from Thursday night preview screenings. It was expected to pull in a lot less, with Guardians of the Galaxy winning its second weekend in a row. That doesn't look likely now, as Michael Bay's reboot is poised to snatch the #1 position from the Marvel sci-fi epic.

Teenage Mutant Ninja Turtles is expected to earn over $60 million at the box office throughout the three-day weekend. While it has earned abysmal reviews from critics, and is currently rotten on the Tomatometer with 20%, it gets a passing grade from fans and audience members who have awarded it an impressive B Cinemascore. This is one of those movies where the paying public and the critics don't quite see eye-to-eye.

While Teenage Mutant Ninja Turtles didn't quite live up to some of the bigger summer movies, it did fare better than Disney's substantial box office hit, Maleficent, which pulled in $24.3 million on its opening day and went onto take in $69.4 million during its three-day weekend in late May.

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While Teenage Mutant Ninja Turtles isn't a summer heavyweight, it is a success during its first weekend, and is on par with other non-sequel movies. Its likely that Paramount will announced Teenage Mutant Ninja Turtles 2 very shortly, especially since Megan Fox and the four main Turtle actors all have a three-picture deal in place.