system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do producers prevent child actors in horror movies from getting extremely scared?
gpt
First, they take the time to explain things to them, and prepare them, and they have their parents/guardians present. And kids who can't handle it probably don't survive long in the industry. 

Second, when filming a movie it's not nearly as scary as the finished product. Think of it with out the jump-editing, without the scary music, without the sharp, jarring angles. If anything, the kids probably get bored. 

On a related side-note: When filming *Maleficent*, Angelina Jolie had to use her own child for some scenes since the other children were afraid of her. Which relates to being able to find the right kid for the job.