Somnium vs The Substance
The Substance has the higher audience score (7.2/10 against 6.1/10 for Somnium). Somnium is the shorter watch at 1h 30m compared with 2h 21m. The Substance is the older of the two (2024 against 2025). Both are drama, horror, science fiction movies, so they suit a similar mood.
Somnium
The Substance| Somnium | The Substance | |
|---|---|---|
| Audience score | ★ 6.1/10 | ★ 7.2/10 |
| Year | 2025 | 2024 |
| Length | 1h 30m | 2h 21m |
| Genres | Drama, Horror, Science Fiction, Thriller | Drama, Horror, Science Fiction |
| Country | – | – |
| Director | Racheal Cain | Coralie Fargeat |
| Main cast | Gillian White, Johnathon Schaech, Steve Eifert, Grace Van Dien, Will Peltz | Hugo Diego Garcia, Demi Moore, Oscar Lesage, Dennis Quaid, Margaret Qualley |
Synopsis
Somnium
Gemma moves to LA, hoping to become an actress. She takes an overnight gig at a sleep clinic that promises to make their clients’ dreams come true. But the longer she spends there, the more it becomes clear that something sinister is going on.
The Substance
A fading celebrity decides to use a black market drug, a cell-replicating substance that temporarily creates a younger, better version of herself.
Where to watch
Where to watch SomniumWhere to watch The Substance
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