Los Angeles ? Alien robots have transformed into box-office superstars with $200 million in domestic ticket sales in just five days.

“Transformers: Revenge of the Fallen” took in $112 million in the sequel’s first weekend and $201.2 million since opening Wednesday, according to Sunday estimates from Paramount, which is distributing the DreamWorks movie.

It was well on the way to becoming the year’s top-grossing movie.

That was a few million dollars higher than other studios were expecting for the movie, and the figures could change a bit when final numbers are released Monday.

Still, it was a colossal start for the “Transformers” sequel, whose opening five days amounted to nearly two-thirds of the $319 million domestic total the franchise’s first movie did over its entire run in 2007.

With a $13 million weekend, Disney and Pixar Animation’s “Up” became the year’s top-grossing film domestically at $250.2 million. It surpassed Paramount’s “Star Trek,” which did $3.6 million over the weekend to hit a $246.2 million total.

The reign of “Up” at the top of the year’s box-office chart will be short-lived, though. The “Transformers” sequel should shoot past it in a matter of days.

Estimated ticket sales for Friday through Sunday at U.S. and Canadian theaters, according to Hollywood.com.

1. “Transformers: Revenge of the Fallen,” $112 million.

2. “The Proposal,” $18.5 million.

3. “The Hangover,” $17.2 million.

4. “Up,” $13 million.

5. “My Sister’s Keeper,” $12 million.

6. “Year One,” $5.8 million.

7. “The Taking of Pelham 1 2 3,” $5.4 million.

8. “Star Trek,” $3.6 million.

9. “Night at the Museum: Battle of the Smithsonian,” $3.5 million.

10. “Away We Go,” $1.7 million.