Coming Soon says:
Some people have wondered why it is Paramount Pictures and not Walt Disney Pictures that is credited in the The Avengers promos. After all, last October they announced that they had "reached an agreement under which Paramount will transfer its worldwide marketing and distribution rights to Disney for Marvel Studios' The Avengers and Iron Man 3... Under terms of the new deal, Disney will pay Paramount $115 million for the transfer of the distribution rights to Iron Man 3 and The Avengers to be paid on the theatrical release dates. These monies will serve as a minimum guarantee against the distribution fees. In completing this agreement, Disney will now assume worldwide marketing and distribution of 'The Avengers' and 'Iron Man 3'."