LOL nobody argued it wasn't an easy thing to work if they wanted to explore it, especially for an elseworld.
There is so many ways they can easily do it.
It's probably more a mater of working out licensing rights.
As far in continuity your changing it to a news report, you kind of miss the whole point of it being used as the specific movie they saw the night his parents were killed. And using that character he saw in the same movie that robed him of his parents, as the means to reinvent himself.
Your changing it to a random "news reports. Bam. Done" kind of loses that significant movie connection, which is why it's there.
As far as elseworld, by all means, there are so many ways to go.