VFX Team Modeled Netflix's Marcellus After Real Aquarium Octopus
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- Chris Ritvo spent approximately 20 hours at the Vancouver Aquarium observing Agnetha, a real giant Pacific octopus, setting up multiple cameras to collect reference footage and photographs that would dictate Marcellus's look and behavior in 'Remarkably Bright Creatures.'
- Marcellus was built as a direct one-to-one reference: Ritvo says every behavior the CG octopus performs in the film is mimicked from either Agnetha or other documented octopus footage, not invented.
- The production required 450 total VFX shots, with 200 of those — nearly half — dedicated solely to the octopus character.
- Animating all eight tentacles was the most time-consuming part of the process, requiring the team to calibrate the limbs to touch glass, attract and detract from objects, and interact believably with the environment.
- Ritvo used Marcellus's coloration as a storytelling device: the octopus starts deep red with black frills, fades toward white as he ages, and 'flourishes again' when he returns to the ocean.
- The hardest problem was empathy — octopuses lack traditional faces and eyes, so much of the audience's emotional connection was achieved by mirroring Sally Field's performance back onto the digital creature.
Why it matters: Of 450 VFX shots on the film, 200 were spent on a single CG octopus — a striking ratio that shows how creature-driven films live or die on reference-gathering and actor chemistry, not just rendering power. Ritvo's team anchored every Marcellus beat to observed behavior from a real aquarium animal, then leaned on Sally Field's performance to project emotion onto a face that doesn't exist.
