But, when it comes to Onward and Harry Potter, there are some borrowed themes.
In Harry Potter’s case, both his parents were killed by Voldemort as a child and that’s the root of his story.
For Ian Lightfoot in Onward, his main goal is to spend a day with his father now that he’s been given this spell.
The moment between Harry and the Mirror of Erised where he gets to see his parents briefly and imagine them certainly reminds one of Onward’s final moments as well.