If Captain America: Civil War's drop is below 60 percent, that's pretty much a win for everybody. That tends to be the norm for these types of movies anyway since they are usually frontloaded. Also, $75 million is basically what the first Captain America movie made on its first opening weekend.
I'm just glad a Captain America movie is doing so much business. I have to be honest, I really felt Captain America was marginalized and mis-handled by Paramount in 2011. I feel like they were just going through the motions with the movie since all the releasing rights were going back to Disney and that was the last film on their contract. I feel The First Avenger could've done much better business had it been marketed better.