Tati is a typical teenager, unable to learn mathematics, but very intelligent when creating plans to escape the punishment of the mother. During the summer, she needs to hide that she has to do math classes to improve her grades, conquer Zeca, the most popular boy in school and also care for the heartache of her mother, who wants to try to find a new love.
Unfortunately the movie O Diário de Tati is not yet available on HBO Max.
| Directing | Mauro Farias | Director |
| Writing | Tiza Lobo | Screenplay |
| Writing | Maria Camargo | Co-Writer |
| Writing | Heloísa Périssé | Screenplay |
| Writing | Paulo Cursino | Screenplay |
| Writing | Rene Belmonte | Co-Writer |
| Production | Tiza Lobo | Executive Producer |
| Editing | Carlos Roberto Mendes | Editor |
| Camera | Tiago Rivaldo | Second Assistant Camera |
| Costume & Make-Up | Uirandê Holanda | Makeup Artist |
| Directing | Janaina Ferreira | Second Assistant Director |
| Sound | Ney Fernandes | Sound Editor |
| Sound | Claudio Valdetaro | Sound Mixer |
| Costume & Make-Up | Valeria Stefani | Costume Design |
| Sound | José E. Caldararo | Foley Artist |
| Sound | Simone Petrillo | Sound Editor |
| Sound | Juarez Dagoberto Costa | Sound Director |
| Visual Effects | Rogério Marinho | Visual Effects |
| Sound | Ricardo Leão | Music |
| Sound | Bechen de Loredo | Foley Mixer |
| Sound | Vinicius Leal | Sound Editor |
| Production | Juliana de Carvalho | Executive Producer |
| Production | Carlos Eduardo Rodrigues | Associate Producer |
| Camera | Nonato Estrela | Director of Photography |