Incorrect. Where did you get this information from?
The Dark Knight's box office:
Domestic (US): $533,345,358 (53.2%)
+ Foreign: $468,576,467 (46.8%)
= Worldwide: $1,001,921,825
Avatar, so far:
Domestic (US): $212,268,000 (34.5%)
+ Foreign:$402,900,000 (65.5%)
= Worldwide: $615,168,000...