Friday saw a 25% decrease in box office revenue over the previous Friday.

1. Funny People - $8.6M
2. G-Force - $5.7M
3. Harry Potter and the Half Blood Prince - $5.4M
4. The Ugly Truth - $4.45M
5. Aliens In The Attic - $2.8M
6. Orphan - $2.4M
7. Ice Age: Dawn Of The Dinosaurs - $1.7M
8. The Proposal - $1.6M
9. The Hangover - $1.5M
10. Transformers: Revenge Of The Fallen - $1.45M

The North American box office took in an estimated total of $35.9 million for the whole of Friday 31st July 2009.