Los Angeles ? James Cameron launched his science-fiction epic “Avatar” into a safe orbit as the costly film soared to No. 1 with $73 million domestically and $159.2 million overseas, for a $232.2 million worldwide total.

With that big a start, distributor 20th Century Fox was quick to proclaim it made a good investment with the estimated $400 million spent to make and market the film, which is Cameron’s first narrative feature since 1997’s “Titanic,” the king of modern blockbusters.

“Avatar” was a test case for the future of digital 3-D projection, which until now has been a hit with audiences mainly on animated family films.

The film fell short of the record for December debuts of $77.2 million set two years ago by Will Smith’s “I Am Legend.” But it did break the record for a film opening in 3-D, previously held by last summer’s “Up” with $68.1 million.

“Avatar” stars Sam Worthington and Zoe Saldana in a love story amid human-alien conflict on a distant moon in the 22nd century.

Storms on the East Coast kept many people at home, cutting into weekend movie business.

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

1. “Avatar,” $73 million.

2. “The Princess and the Frog,” $12.2 million.

3. “The Blind Side,” $10 million.

4. “Did You Hear About the Morgans?,” $7 million.

5. “The Twilight Saga: New Moon,” $4.4 million.

6. “Invictus,” $4.2 million.

7. “Disney’s a Christmas Carol,” $3.4 million.

8. “Up in the Air,” $3.1 million.

9. “Brothers,” $2.6 million.

10. “Old Dogs,” $2.3 million.