Reuters reports on Fox having to make some adjustments to the projected box office from the weekend:

The three-day weekend tally still stands at No. 3 among all-time new releases, behind "Spider-Man," which opened with a phenomenal $114.84 million two weeks earlier, and "Harry Potter (news - web sites) and the Sorcerer's Stone" with $90.29 million last November.

And "Clones" still took just four days to break the $100 million barrier in 3,161 theaters, second only to "Spider-Man," which took three days in 3,615 cinemas.

However, before Monday's adjustment, the four-day opening sum of "Clones" appeared to have bested the three-day debut performance of "Spider-Man," which drew $114.9 million during its first weekend in theaters.

In another box-office footnote, the Friday-through-Sunday figure for "Spider-Man" was itself revised downward nearly $1 million to $45 million. That makes it the 15th-highest grossing film of all time domestically, instead of No. 14 as was reported earlier.

It is not unusual for final weekend figures reported by studios to differ slightly from their early projections, which combine hard data from Friday and Saturday with an extrapolation of the studio's best guess for Sunday.

In the case of "Attack of the Clones," Fox underestimated how much ticket sales would drop off from Saturday to Sunday, projecting a decline of 11 percent based on its experience with "Star Wars" Episode I -- The Phantom Menace," back in May 1999. Instead, "Clones" actually dropped 21 percent, a difference magnified by the sheer size of the movie's true gross, a Fox spokeswoman said.