Why is it difficult to make a good Superman movie?
Since X-Men in 2000, we've seen a ton of quality superhero movies, such as Iron Man, Dark Knight, Logan, Captain America, Thor, Black Panther, Spiderman, etc.
Superman, however, hasn't enjoyed the same success. Why?
The recent movies have been especially bad:
1). Batman v. Superman
2). Man of Steel
3). Superman Returns
Then there are the older ones, which are not bad yet also not particularly excellent:
4). Superman III
5). Superman II
Is it because Superman is too strong? Is it because his personality is too vanilla and goody-two-shoes? Is it because his appearance (the cape, the red & blue) is outdated?