Re: "You ready for another Bout?"- The Thor/Chris Hemsworth Thread
Yeah Thor played a very very very minor role in the Avengers adventure. The only contribution he made was blocking the portal with thunder for a while.
I believe the Thor mythos was already having great prominence with the Thor villain being the main Avengers villain. I think giving Thor a lesser role might have been Whedon's way of restoring parity between the various franchises. If Thor had an even bigger role, it would have been "Thor & friends" :P.