It was the books that made me a shipper, I'd heard mumbling of HP fandom and R/Hr shipping, but I came to my shipping choices on my own (once I found fandom though I'll admit it was what turned me onto Ron/Luna, but I withheld judgment on it until book six when it suddenly made sense to me (even though at that stage I really doubt JKR intended it)). And once I realized it and I read the book in that light everything made sense...and then I found out people though R/Hr was also obvious and I was baffled because it wasn't to me.

So yeah, I wouldn't be surprised if the movie writers were at least keeping the ship options open until JKR came down firmly on a side, but now...we'll see I guess because as much as I may have issues I'm sure I'll end up seeing it before too long.