Hell, so many films I remember with affection.
I've got a soft spot for food films - Babette's Feast, Tampopo, Like Water for Chocolate and Chocolat are up there among my favourites.
Looking at my own small video collection it seems pretty weird, but they're all films I love:
Withnail & I
If...
The Wicker Man
Land & Freedom
Trainspotting
Il Postino
Kieslowski's trilogy (superb films, and well suggested, Micca!)
The Dead (a flawed film, but essential for a Joyce nut!)
The Wallace and Gromit trilogy
Monsieur Hulot's Holiday (why the Cheese-Eating Surrender Monkeys rate Jerry Lewis when they produced Jacques Tati I'll never work out)
Gosford Park
A Clockwork Orange
Manon des Sources
Jean de Fleurette
...plus various children's films of varying awfulness reserved for rainy days to keep the little buggers quiet!