Perfect cast, but TERRIBLE acting!!

I guess it was just a thing of the times! But I couldn't keep silent on the matter any longer after re-watching the "going downstairs in Rebecca's costume" scene. I think the only one who pulled anything remotely close to good acting off was the woman who played Maxim's sister. Even she cried out: "Rebecca!" which was ultimately a cheesy moment. But Maxim "looked up" in an awkward way, the second D was laughing but crying: "What have I done!?" and even Mrs. Danvers was her usual melodramatic self. I don't know why people acted so badly back then, when future, much later roles PROVE they can act terrifically. Times have changed, but where was common sense!?

CDEGFEDCC. (Shhh!)