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Tear Jerker: Enchanted
Call it Affectionate or Indecisive Parody, the scene when Giselle has that dance with Robert is strangely moving. It becomes crushingly sad when she's alone and the disguised Narissa essentially taunts her with the knowledge she's going to marry a man she no longer loves, as a way to convince her to eat an (actually poisoned) apple with the promise that she'll forget this experience and live Happily Ever After. Giselle takes a bite... Of course, this is a Disney movie, and everything will work out, but perhaps it's a testament to how good Amy Adams is that it's a tearjerker anyway.
The ambiguity of Narissa's wording and Giselle's Genre Savvy could also make it so that she knows she'll fall into eternal sleep and it's a sort of suicide. Which slays me even more.
For me, it started when Robert started mouthing the chorus of "So Close" in Giselle's ear.
More than just mouthing...he's singing to her. When you remember his earlier statement that he didn't sing, it gets all the better.
What really did it for me was when she watched Nancy and Robert kiss and she just looked like she was going to cry.
After Giselle eats the apple and falls asleep, Robert realizes that True Love's Kiss is the only thing that will wake her up. He steps aside to let Edward do it (and the observant viewer will notice he was just about to move in to kiss her himself for a moment), but it still doesn't work...so both Edward and Nancy tell him thathe'llhave to do it. And then there's what Robert says right before kissing Giselle.