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.