Baby Name Trend Starter: Heidi is a rare name in English-speaking countries. Without the influence of Heidi and its adaptations, it probably wouldn't be a name at all.
Science Imitates Art: The minor planet 2521 Heidi is named for the main character.
The 1937 film:
Actor-Inspired Element: Shirley Temple suggested Delmar Watson for the role of Peter, having worked with him in To The Last Man.
California Doubling: The scenes in the Alps were of course filmed in California.
Deleted Scene: A scene where Heidi teaches Peter how to read.
Delmar Watson was only given his lines the day before his scenes because the director wanted Peter to seem "slow".
Shirley Temple didn't know she was going to get squirted in the face when milking the goat; her surprised reaction is genuine.
No Stunt Double: Shirley Temple did the first few takes of Heidi getting butted by a goat herself. While it wasn't painful, her mother soon grew worried, and the remaining takes used a double.
The 1968 TV film:
…But I Play One on TV: Jennifer Edwards got loads of hate mail for the infamous "Heidi Game" incident, even though she had no control over the broadcast.
