Pulp Fiction. The combination of the upbeat music and memorable dialogue used to make me rewatch it at least once a month, as a feel good movie. I've since dialled it down but will still occasionally watch parts of it.

The funny thing is the first time I saw it I didn't like it all due to it's mixed-up order of story telling and, once you put it all together, fairly mundane plot. It was over time that I realised the plot is not really what you watch it for but you watch it for the overdrawn, yet interesting, character interactions in combination with the music and general vibe.