The final scene of Le fabuleux destin d'Amélie Poulain (AKA Amelie).
If you've never seen this film do not watch this because it's the ending, but get off your computer, put down your phone, and watch it immediately. I saw this film six times in the theater because it made me feel so good that whenever anyone told me they hadn't seen it I took them so they could experience the same feeling.
