Cosmic Book News has the following for us:
It's long since been rumored and even hinted upon my Marvel Studios president and producer Kevin Feige that Thanos would be appearing in the 2014 Guardians of the Galaxy movie.
Feige has all but said Thanos is in the movie.
Now we learn that not only will the Mad Titan Thanos be featured in the Guardians of the Galaxy movie — but The Avengers 2 as well.
We previously reported that Thanos creator Jim Starlin was in talks with Marvel about "something," with it theorized that it was over the rights to Thanos.
Now, a Cosmic Book News regular, Armand Rock, has confirmed through Jim Starlin that Thanos will be in the Guardians of the Galaxy movie and The Avengers 2.Also mentioned as being in the Guardian film are Adam Warlock and The Magus. So we're getting some incredibly awesome fanboy elements coming to Marvel's big screen franchises!

