So I'm guessing these are scenes of "love," not limited to lovemaking? I'll definitely forget some here.
Le Samourai - The scene towards the end where Jeff and Jane hug and kiss, and he says he doesn't need her alibi.
Abre Los Ojos - The final scene with César and Sofía.
Casablanca - Final airport scene.
Once Upon a Time in America - The dinner with Noodles and Debbie, before the more infamous scene.
A Woman Under the Influence - A few small moments during the film, most of all the end.
Memento - Not between two characters, but Lenny's memories while he burns her belongings.
Mean Streets - The post-sex scene.
Mulholland Drive - The first one in the bed with Watts and Harring.
Vertigo - The rotating kiss scene after Judy comes out of the bathroom.
La Dolce Vita - Actually this is the anti-love scene, but when Marcello goes to retrieve Sylvia from the Trevi fountain, and the water flow stops.
Raging Bull - The few first scenes with Jake and Vickie, before things go wrong.
Goodfellas - The brief pre-sex scene between Henry and Karen.
Once Upon a Time in the West - The final scene where Jill seems to want someone to stay with her, but both Harmonica and Cheyenne must go.
Eternal Sunshine of the Spotless Mind - Several little moments.
21 Grams - The sex scene between Penn and Watts.
Double Indemnity - Not a love scene, but the final hug between Walter and Phyllis.
On the Waterfront - When Terry breaks down Edie's door.
Gone With the Wind - Scarlett finally realizes she cares for Rhett, but it's too late.
Nosferatu: A Symphony of Horror - The final scene with Ellen dying in Hutter's arms.
Broken Flowers - The scene where Don visits Michelle Pepe's grave.
8 1/2 - "Accept me as I am. Only then can we discover each other."
The Insider - The scene where Jeff reflects on his children in the hotel room. Not a lover romantic scene, but an expression of his love for his children.
The Woodsman - Somewhat disturbing, the pre or post-love scene where he simply smells her hair.
Fight Club - The final scene.
Edward Scissorhands - Somewhat corny, but the "hold me" scene.
