The Hollywood Reporter said the film, starring Andrew Garfield as the titular web-slinger, had the second-best showing of the summer behind "The Avengers" in May.
Industry insiders predict "Spider-Man" could rake in more than $120 million over the July 4 holiday, the entertainment industry trade newspaper said.
"Spider-Man" has already earned more than $50 million overseas where it opened in select territories last weekend.
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