"Avengers: Age Of Ultron" declared a wrap last week courtesy of Director Joss Whedon's grumpy "What the hell do I now?" picture. Kevin Feige has an answer: Do the reshoots!

Feige goes to lengths to explain that having reshoots does not necessarily mean they made a mistake nor are there additional characters. Feige clarifies in Badass Digest:

"I'm reading the part in Jedi where George is finding the movie in the cut. It happened in Empire, and it happened in Star Wars. You've heard about those famous early screenings where people were like, 'Poor George. His career is over.' That brings great solace to me when we screen our movies for the first time and they're terrible and they're a big mess. I remind myself to get calm  and proceed.

Post is my favorite part, because it's easiest to find what's wrong with the movie when you're watching the movie."

In fact, it's actually more of a Marvel standard operational procedure:

"We always build in two weeks because the hardest thing about the additional photography is the actors' schedules, wrangling the actors. So we just build it in. We've done some movies that have three days of reshoots, some that have fifteen days, twenty days if not more. Sometimes we know what we need by that point and sometimes we're wrangling them anyway. There's a shot in 'Thor: The Dark World' we call the Three Continent shot. It's one shot, with three different actors in it, that was done on three different continents.

Additional photography is invaluable. Sometimes it's to fix something that's not working, but most of the time on our movies it's two-fold: sometimes a better or more exciting idea will come along, or more often something will come out of the movie - because it's too long or the movie is stronger without a particular beat or scene or shot, and you need connective tissue."