Novelty is key to entertainment. At some point, having the same three guys show up and fight a villain gets repetitive. The studio likes safe bets because the c

Novelty is key to entertainment. At some point, having the same three guys show up and fight a villain gets repetitive. The studio likes safe bets because the costs are so high. But you don't get 1977 Star Wars money on things that closely resemble things that came out last year. The movie industry has gone through this kind of cycle before; they enter a very creative few years, and then they go through some greedy lazy years where they try to reissue the things that won a few years ago, tweaked slightly.