Julia, a 25 year-old university student, two weeks pregnant, with no criminal record, is sent to prison. Julia murdered the father of her child. This story addresses maternity, jail and Justice; confinement, guilt and solitude; but above all it deals with Julia and her son, Tomas, born inside an Argentinean prison.
You can now watch Lion's Den online on the following streaming providers in the United States.
| Writing | Martín Mauregui | Writer |
| Writing | Santiago Mitre | Writer |
| Writing | Pablo Trapero | Writer |
| Directing | Pablo Trapero | Director |
| Writing | Alejandro Fadel | Writer |
| Editing | Ezequiel Borovinsky | Editor |
| Production | Verónica Bruno | Casting |
| Costume & Make-Up | Andrés Parrilla | Makeup Artist |
| Costume & Make-Up | Marisa Urruti | Costume Design |
| Art | Agustina Llambi Campbell | Production Design |
| Production | Suh Young-joo | Producer |
| Art | Fernanda Castelo | Assistant Art Director |
| Sound | Julián Catz | Boom Operator |
| Lighting | Daniel Ciurleo | Gaffer |
| Lighting | Fernando González | Electrician |
| Production | Alejandro Cacetta | Associate Producer |
| Production | Walter Salles | Co-Producer |
| Camera | Hernán Alvarado | Second Assistant Camera |
| Lighting | Miguel Rivarola | Electrician |
| Visual Effects | Leandro Pugliese | Visual Effects Supervisor |
| Camera | Mariano De Luca | Second Assistant Camera |
| Production | Marcelo Vitali | Location Manager |
| Sound | José E. Caldararo | Foley Artist |
| Camera | Christian Bonini | Assistant Grip |
| Directing | Ignacio Gaggero | Second Assistant Director |
| Directing | Valeria Pivato | Assistant Director |
| Directing | Jonás Costa | First Assistant Director |
| Directing | Carlos Kaimakamian Carrau | Assistant Director |
| Costume & Make-Up | Diana Titaferantta | Makeup Artist |
| Directing | Mariano De Luca | Second Assistant Director |
| Production | Rocio Furmento | Producer's Assistant |
| Production | Pablo Trapero | Producer |
| Editing | Pablo Trapero | Editor |
| Directing | Rolo Pulpeiro | Second Unit Director |
| Production | Marina Hambra | Location Manager |
| Production | Jimena Monteoliva | Production Coordinator |
| Production | Juan Vera | Associate Producer |
| Costume & Make-Up | Alberto Moccia | Makeup Designer |
| Directing | Martín Mohadeb | Second Unit Director |
| Sound | Rufino Basavilbaso | Dialogue Editor |
| Sound | Leandro de Loredo | Foley Recordist |
| Visual Effects | Poll Pebe Pueyrredón | Digital Effects Producer |
| Visual Effects | Alejo Varisto | Visual Effects Coordinator |
| Sound | Roberto Espinoza | Foley Artist |
| Sound | Andrés Pepe Estrada | Sound Editor |
| Visual Effects | Agustin Graham | Animation |
| Production | Marcelo Martín | Production Manager |
| Camera | Nuria Besser | First Assistant Camera |
| Camera | Rafael Sahade | Steadicam Operator |
| Sound | Federico Esquerro | Sound Director |
| Lighting | Alejandro Albarenque | Electrician |
| Crew | Marcelo Furchi | Video Assist Operator |
| Sound | Roberto Migone | Sound Re-Recording Mixer |
| Camera | Martín Mohadeb | Camera Operator |
| Editing | Luisa Cavanagh | Colorist |
| Production | Mauro Guevara | Production Runner |
| Production | Juan Pablo Galli | Associate Producer |
| Production | Martina Gusmán | Executive Producer |
| Production | Ana Aráoz | Casting |
| Art | Graciela Oderigo | Art Direction |
| Visual Effects | Ezequiel Borovinsky | Visual Effects Supervisor |
| Camera | Tomás Acevedo | First Assistant Camera |
| Directing | Carolina Graña | Continuity |
| Camera | Guillermo Nieto | Director of Photography |