Trailing right back to the Granddaddy of all Fanships, Kirk/Spock
Granddaddy? What about the Lois Lane/Lana Lang thing in Superman comics?
Personally, I rather wish that creators wouldn't go around after the fact telling people what their work really meant, especially when it is years after the work was released, since the work itself should do that. Taking Blade Runner as an example, was Ridley Scott's inserting/emphasising, in the director's cut, the idea that Deckard is a replicant, any different from George Lucas' "Greedo shot first" thing*, except for being less clumsily executed? Both essentially involved telling a large proportion of their audience that they were wrong and stupid.
*I declare my interests: Han shot first. Deckard is human. 
Quoting this here because it's not related to the thread but reminded me of a discussion I had with my Partner. We've made films together and both been heavily involved from conception to post-production on projects that we equally consider ours. So I was saying one time that it's interesting that there is media with ambiguous and unexplained endings or plot points, like
Inception and
Blade Runner and that people involved with the production have said their belief of the ending. However a producer is different than an actor which is different than a writer which is different than a director and all have arguably different amounts, if any, on the say of what is canon.
So it's possible we could make something that has an ambiguous ending and we are both involved equally in every step of the process. I'm not talking about interpretations or Word of God, I mean like an ending that cuts off before the audience sees a key bit of information that explains if a scenario is A or B (or C or D, etc). In canon, it must be one way or the other, we just chose to not reveal whatever it was to the audience and the scene doesn't exist to show (or both scenes exist if we have enough money to have deleted scenes, omg). As we are both the creators, we could have different ideas about what the ending was, I say it was A and Partner says it was B... But it's still each of our projects. We agree that there's equal say so both ideas are correct and canon, at least in our own heads. We both could claim A and/or B to be the canon ending and neither of us are wrong because it's creative media and that is amazing to me.
