As we all know The Avengers did great grossing a ton of money (around 1.5billion I believe) but it didn't beat Avatar.
So just out of curiosity what do guys think Avengers 2 would have to do to dethrone Avatar? This is purely theoretical so anything goes (eg: it doesn't matter that Galactus is owned by Fox). Would it be the addition of a character? Bigger plot? more funding etc..