Léon - every time I contemplate watching it again, I remember how hard I cried after the first viewing and think "Maybe some other time."

Similarly, the 1930 version of All Quiet On The Western Front.

The film adaptation of Raymond Briggs’ When The Wind Blows had me in hysterics as soon as I set foot out of the cinema — bursting into tears, then hysterical laughter, then tears, then more laughter, on uncontrollable repeat for about an hour afterwards.