Some people find shells and old coins on the beach.
In The Light Between Oceans, Michael Fassbender and Alicia Vikander find a baby and, well, finders keepers.
They're not the first movie characters to discover a surprise bundle of joy.
The Jungle Book
In the 1967 cartoon and this year's remake, wild animals discover a baby and, because Disney made both movies, decide to raise it as their own rather than eating it as a snack.