Really, as long as you're a main cast member, it counts.
Looking at the website that collates these lists, they don't include Christopher Lee in their list for 2002. Considering he was in the 2nd and 3rd biggest grossing films of that year, then he should be in the list. But as he wasn't a lead in either of them, they didn't count him. Shame really.
So when the "official" result is published, don't be surprised to see someone instead of Carter sitting atop the list.
Also, you're only listing US grosses. Don't know if it would make any difference but Toy Story 3 has cleared a billion dollars worldwide.