Suspicion - This is a perfectly solid Alfred Hitchcock entry up until the closing minutes. From what I've read RKO studios
WARNING: spoilers below
forced the Hollywood happy ending on the director and basically ended up negating the entirety of the film. I'm not sure of their exact motivation but up until that point
WARNING: spoilers below
the incongruous 180 degree ending came off as so jarring. There have been suggestions that the ending is yet another of Hitchcock's red herrings and that Johnnie will simply kill Lina at another time but the final shot of the couple driving away and back to their home is pretty much straightforward and includes no foreshadowing. So I'm more apt to buy into the idea of studio interference than I am any calculated head games.
WARNING: spoilers below
a total doormat of a female lead insisting on sticking it out with this suspicious *sshole.of a husband the whole time (it speaks to Joan Fontaine's skill as an actress that she was somehow able to make it an Oscar-worthy role), but then in the span of a five minute conversation at the end, we're supposed to turn around and feel happy that they're going to stay together, even though, again, Grant's been a total *sshole to her almost the entire time, partly because the studio just couldn't stand to make him really play a bad guy? Damn you and your forced happy endings, Classical Hollywood!