Is it still amazing to see that there was a time when Disney had no problem depicting Mickey Mouse getting venereal diseases and attempting shotgun suicide? You bet!
Sometimes important stuff is cut from films, and sometimes that stuff includes character moments and backstories that kind of change the whole way you look at the film.
These are the sequels that seem like they were written by someone whose only knowledge of the original came from overhearing a drunk hobo explain the plot an hour before their assignment was due.
Despite originally airing in the early '80s and having a shamelessly implausible cartoon premise, this cartoon managed to correctly predict more trends in the modern world than most serious speculative fiction novels.
We suspect that the real reason we aren't privy to movie character plans out front is because, most of the time, they'd sound pretty stupid if you said them out loud.