DreamWorks and Paramount certainly have a reason to celebrate this weekend. Based on studio weekend estimates, Transformers: Revenge of the Fallen grabbed a staggering $112 million this weekend, which brings its cume to $201.2 million since opening last Wednesday.

Last summer, The Dark Knight grossed $203.7 million in five days, so Transformers 2 will fell just shy of that mark. Considering that Knight received much stronger reviews, its unlikely that Transformers 2 will have nearly as much staying power. Still, this marks an incredibly strong opening for Michael Bay's film.

My Sister's Keeper debuted in 5th place with $12 million. That marks a pretty respectable debut for the drama, and Keeper should show some legs in the weeks to come.

The Proposal added $18.5 million during its sophomore frame, and it's just shy of the $70 million mark. Proposal is benefiting from solid word of mouth, and it still represents a strong alternative for audiences who are not enticed by typical summer blockbusters.

Overall box office receipts for the weekend should equal around $202 million, which puts it 8.3% ahead of 2008's corresponding weekend. 2009's domestic haul is now 12.2% ahead of 2008 at the exact same point in the year.

Check back tomorrow for weekend actuals.