Love Actually/Heartwarming


 * The whole movie is practically made of heartwarming moments, but my favorite is actually a small and subtle one: Daniel is Sam's stepfather, and all through the movie Sam has called him Daniel...right up until Daniel says they have to follow Joanna to the airport, to which Sam says, "Okay, Dad." He then immediately follows it up with a Crowning Moment of Funny by adding, "Let's go get the shit kicked out of us by love."
 * Less subtly, Daniel's crush on Claudia Schiffer is a Running Gag in the movie (and played into a Refuge in Audacity Crowning Moment Of Hilarity in a cut scene). Shortly after the scene where Sam calls him Dad, Daniel bumps into a Claudia Schiffer lookalike (played by herself, naturally). The attraction is clear, mutual, and leaves him stammering... and he still focuses on getting Sam to the airport instead.
 * Juliet pops over to Mark's to pick up the wedding tape Mark made, which Mark desperately tries to claim he's misplaced and taped over, provokes Juliet to call him out on never liking her.