>Which leaves me with a question that only someone who has seen it (and
>probably them) can really answer: Before I do that, should I set aside
>eight to ten hours of my life and watch Iron Man 3, Thor
>2, Captain America 2, and Guardians of the Galaxy
>first? (I'm not watchin' two seasons of Agents of SHIELD,
>that's not even on the table. :)
>
>--G.

The simple answer is no, you do not need to watch anything between Avengers and Avengers: Age of Ultron.
You should not be missing anything vital to the movie itself.
You also do not need to have seen any of Agents of S.H.I.E.L.D.

Thanks!
Phantom

"When you have eliminated the
impossible, whatever remains,
however improbable, must be the
truth." - Sherlock Holmes