Universal had the rights to Hulk and did Ang Lee's Hulk
. Marvel bought the rights back and Universal got the distribution deal.
Paramount did the distribution for IM1 and 2 and IIRC, did Thor. IIRC, Cap was distributed by Disney, but Paramount gets credit. That's definitely the case on Avengers, though, Paramount's logo goes on it, but Disney distribute. there was some arcane deal done after Disney bought Marvel.
new photos, courtesy of Empire.
Feige talks mystery enemies.
my money is now on the Chi'tauri from Ultimates.