In keeping with Carin-Anne Strohmaier, to start with assistant movie editor, the shot was designed via three different plates and digitally manipulated in CGI to create the impact: a single plate was from the cameraman main Ellie, the 2nd of Ellie opening The cupboard door (which was a blue monitor https://drive.google.com/file/d/1dGfum-DsfD0Znd8wwxPXdQIQLfAKU_G9/view?usp=sharing