Iron Man
Domestic: $318,412,101　54.4%
+ Foreign:$266,762,121　45.6%
= Worldwide:$585,174,222

Captain America:The First Avenger
Domestic: $176,654,505　47.7%
+ Foreign: $193,915,269　52.3%
= Worldwide:$370,569,774

The Dark Knight
Domestic:$534,858,444　53.2%
+ Foreign:$469,700,000　46.8%
= Worldwide:$1,004,558,444

どれもオリジンは半々程度だけどね
まさか人気定着後の続編での海外比率を言ってるの？