DreamWorks and Paramount certainly have a reason to celebrate this weekend. Based on BOXOFFICE.com's Early Weekend Estimates, Transformers: Revenge of the Fallen is on pace to reach the $200 million mark by the end of Sunday. According to Paramount, the sequel brought in $36.7 million on Friday after grabbing $89.2 million from Wednesday and Thursday combined.

Last summer, The Dark Knight grossed $203.7 million in five days, so it looks as though Transformers 2 will fall 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 also debuted this weekend, and it should grab $13.5 million. That marks a pretty impressive debut for the drama, and it should show some legs in the weeks to come.

The Proposal will grab around $19 million during its sophomore frame, which puts it close to $70 million domestically. The romantic comedy is benefiting from solid word of mouth, and it still represents a strong alternative for audiences who are not enticed by typical summer blockbusters.

Check back tomorrow for studio weekend estimates.