Nightmare Fuel / The Innocents

• When Miss Giddens is asleep and having nightmares, Flora slowly gets out of bed, spends a few moments watching her creepily and then goes to the window. She begins humming the song Miss Jessel taught her, when suddenly her eyes focus on something (or someone) and she smiles and continues to hum.
• Quint's first up close appearance, just drifting up to the window out of nowhere and almost snarling at Miss Giddens. The way she describes him staring at her "as if he were hunting something".
• Miss Jessel's first appearance on the lake. Flora begins to hum the song, almost as if it's a summoning chant. Then suddenly there she is across the lake. At this point Miss Giddens doesn't know that the governess killed herself jumping into the lake, so all she sees is a ghostly woman leering at them for no reason. Flora may deny ever seeing her, but she has an expression on her face that looks as if she's terrified. Miss Giddens asks "who is it? Over there?" - and Flora is either shocked that someone else can see this ghost, or worried that her governess is talking about things that aren't there.
• Miss Giddens's nightmare sequence has an unbelievably creepy shot where Miles is whispering in Flora's ear "watch her". Soon followed by Flora happily dancing with Miss Jessel (and her happy expression is what makes it so creepy) and Miles being led away by Quint.
• The famous scene of Miss Giddens walking through the house in the middle of the night, thinking she hears voices mixed with the natural sounds of the house. If you listen closely, you can hear what we assume is Miss Jessel whispering "the children are watching" over and over again. This is either their haunting going from distant to outright terror, or Miss Giddens's imagination driving her to madness.
• Miss Giddens forcing Flora to try and confront Miss Jessel's ghost across the lake. Her screams sound more like an animal being tortured as she shrieks that she's never been able to see her. If you believe the ghosts are real, this scene becomes a child trying to comprehend that someone she knew and loved is dead yet keeps coming back to see her. If they're not real, she's an eight-year-old having her mentor and protector ordering her to say she sees something she can't.
• Likewise is Miss Giddens's attitude in the climactic scene with Miles. Whether she was imagining anything or not, you get the sense that this woman has been driven mad anyway by the experience. It just goes to show how creepy Deborah Kerr could be when she wanted to.

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