^ Singer never said it was a direct sequel. He said it was a loose sequel. Essentially, he picked and chose what he wanted to be consistent with the original movies.
And that was a big part of my problem with the film. It was too half-hearted, stuck between paying homage and doing something new. It lacked a clear identity of its own. I'd rather have seen it commit wholeheartedly to creating a new, fresh take on Superman. That would've been a better tribute to Donner than just copying elements of Donner's films, because it would've instead been following in the footsteps of Donner's approach
: reinventing Superman, bringing a fresh, modern take to it.