Samson and Sally

(1984) Samson and Sally is a Danish animated fantasy film directed by Jannik Hastrup. The film is based on a novel called The Song of the Whales by Bent Haller.

Swallow scene
Having an octopus stuck to his head, Sally intervenes to help her friend Samson deal with the nuisance. Sally pulls on the octopus as Samson begins to struggle, and then releases it as it catapults right into Samson's belly.

https://youtu.be/5YJj6oqEfx4

Predator

 * Samson

Prey

 * Octopus