From the 1966 short animation "Les Escargots" by René Laloux.
(This is probably the best screenshot showing the tears, but it's not obvious why he's crying (and making himself cry). It's because his tears are making his plants grow. The snails arrive a few minutes later.)
Les escargots Directed by René Laloux • 1966 • France
FANTASTIC PLANET was not the first collaboration between writer-director René Laloux and illustrator Roland Topor. Presented here is a short film they made together in the mid-1960s: LES ESCARGOTS.
A new icon for your "Because my tears are delicious to you" tag
(This is probably the best screenshot showing the tears, but it's not obvious why he's crying (and making himself cry). It's because his tears are making his plants grow. The snails arrive a few minutes later.)
Video: https://youtu.be/T_suUcUpquw?t=186
Review: https://thekarpuk.wordpress.com/2008/01/31/ch006/
Criterion Channel's capsule:
Les escargots
Directed by René Laloux • 1966 • France
FANTASTIC PLANET was not the first collaboration between writer-director René Laloux and illustrator Roland Topor. Presented here is a short film they made together in the mid-1960s: LES ESCARGOTS.