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"Step Up 2" remained the North American box office champion from September 30 to October 6 with a gross of $20.87 million (-45.1%), marking Flamethrower Pictures' ninth weekly championship trophy of the year, accounting for 23% of the total 39, more than any other company; followed by DreamWorks' animated comedy "Super Invincible Boss Dog: The Curse of the Rabbithumans" which took the lead with $21.55 million for the week of October 7-13; Columbia's horror film "Ghost Fog" then captured the championship for the week of October 14-20 with $14.24 million.
With drops of 46.7% and 55.3%, bringing in $11.12 million and $4.97 million respectively, "Step Up 2's" North American total gross rose to $74.99 million after four weeks in release, making it a very satisfying outcome during the movie market's off-season.
