AceShowbiz -

On its fourth weekend, "Avatar" came out unchallenged on North American Box Office. This James Cameron's sci-fi has managed to secure the top spot with $50.3 million, dropping only 26.6|percent| in ticket sales. So far, the movie has collected $430.8 million domestically.

The number has made "Avatar" the 2009's highest grossing film in the U.S., beating out "Transformers: Revenge of the Fallen". The Sam Worthington-starring film, moreover, has passed "Spider-Man" and "Pirates of the Caribbean: Dead Man's Chest" to become America's seventh-highest grosser all time. By the next weekend, "Avatar" is expected to jump four more spots to become No. 3 on the U.S. all-time list.

Earlier the week, on January 7, this big budget film has been claimed as the second-highest worldwide grosser ever with a total of $1.14 billion. It beat out 2003's "The Lord of the Rings: The Return of The King" which gained $1.12 billion tally worldwide.

Following "Avatar" was "Sherlock Holmes", which still sat on the second place since it was released on December 25, 2009 and added another $16.58 million. Meanwhile, 20th Century Fox's "Alvin and the Chipmunks: The Squeakquel" secured the third position with $16.57 million, making a total domestic haul of $178.4 million.

The fourth place went to newcomer "Daybreakers", which has just been released on January 8. The Ethan Hawke's vampire action flick collected $15.1 million. Rounding up the top five was "It's Complicated", which took in an approximately $11 million.

Top Ten Movies at Box Office for January 8-10:

1. "Avatar" - $50.3 million
2. "Sherlock Holmes" - $16.58 million
3. "Alvin and the Chipmunks: The Squeakquel" - $16.56 million
4. "Daybreakers" - $15.1 million
5. "It's Complicated" - $11 million
6. "Leap Year" - $9.2 million
7. "The Blind Side" - $7.5 million
8. "Up in the Air" - $7.2 million
9. "Youth in Revolt" - $6.9 million
10. "The Princess and the Frog" - $4.6 million