Can't delete site header on one specific page

Site URL: https://blueberry-bellflower-ls7b.squarespace.com/

PASSWORD: SoRight41!

Can someone please help me with code to hide the site header logo ONLY on the 'Documentary' page? Tried other codes in page code injection on similar forums with no luck.

#collection-5f1d88f9f6d4d94f954cc063 .Header-branding {
    display: none;
}

Add to Page Settings > Advanced > Header

(If you use Personal Plan > Insert Code Block > Add below code)

<style>
  header.Header.Header--top {
    display: none !important;
}
  .Mobile-bar.Mobile-bar--top {
    display: none;
}
</style>

Disable Ajax Loading if the code doesn't work. https://support.squarespace.com/hc/en-us/articles/115000253288-Ajax-loading