Bottom of the Sea (Spanish: El fondo del mar) is a 2003 Argentine comedy-drama thriller film written and directed by Damián Szifrón and starring Daniel Hendler, Dolores Fonzi and Gustavo Garzón.

A slightly neurotic architecture student, Ezequiel Toledo (Daniel Hendler), drops by his girlfriend Ana's (Dolores Fonzi) apartment and finds a man named Aníbal (Gustavo Garzón) hiding under her bed.

Aníbal retires quietly without knowing of Ezequiel's discovery, and Ana does not mention him at all.

Critic Gustavo J. Castagna, reporting from the Mar del Plata Film Festival for FIPRESCI liked the film, and wrote, "El fondo del mar is clearly directed to the box office crowds when made through the use of mixed genres, but it does not fall into any false intents; closer to the aesthetics of Fabian Bielinsky's Nine Queens, El fondo del mar shows that a cinema made with pleasure and formal rigor is still possible.

"[2] Neil Young thought the film was an "unassuming but very likeable little comedy with dramatic touches...writer-director makes a very old set-up seem fresh, funny and surprising."