Here's the whole deleted "Return to Krypton"
I'm really surprised they didn't just open the movie up this way.
As much as I love the Brando narration and seeing Krypton blow-up in hi-def, I think if they opened the movie up like this it would've generated much more interest and suspense... instead of having the expository title card and then barely any mention of Krypton at all.
If you start with this, followed with the credits, go back to Earth and have a few scenes explaining WHY Superman returned to his dead world, you'd have a stronger hook to get you interested as to why he went to Krypton and his inner turmoil of having gone on a wild goose chase.
Ah, what could have been...
I'm glad they cut it, it was pretty boring, nothing really happens for 5 minutes, is that how they want to start the movie? This whole plotline of his return to Krypton is a non-starter, it raises questions that the movie never attempts to answer. Like considering that this is supposed to be a quasi-sequel to the previous movies, he should already know that Krypton is dead. Did something happen to make him think it was still there? When he gets there, he finds out that it hasn't exploded like in the previous movies, but has instead been turned into Kryptonite. How? When? It's like they start the movie with a big mystery and then instead of trying to solve it, Superman just says "I think I'll go home instead, see what Lois is up to." At least the theatrical cut only took 30 seconds to do this. I'll admit it's pretty to look at, but that only goes so far.