5. Bruce Wayne's Love Interests
Christopher Nolan nailed many of Batman's key alliances during the course of the trilogy, from his crimefighting partnership with Commissioner Gordon to his close connection with Alfred Pennyworth, but romance is not the franchise's forte.
This is a problem that dates back to Batman Begins in which Bruce Wayne goes through the motions with Katie Holmes's Rachel Dawes. The not-so-dynamic duo share plenty of trite dialogue but no chemistry whatsoever. Things improved somewhat in The Dark Knight when Maggie Gyllenhaal took over the role, though it's still difficult to believe there is any genuine affection or emotion there.
With both Talia al Ghul and Catwoman among its cast, The Dark Knight Rises had the opportunity get a Bat romance right, but it fell into many of the same pitfalls. Wayne's relationship with both characters feels forced and underdeveloped, and could have used at least a handful of extra scenes to flesh them out.