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 | Rene Belmonte | Co-Writer |
| Writing | Paulo Cursino | Screenplay |
| Writing | Heloísa Périssé | Screenplay |
| Sound | Ney Fernandes | Sound Editor |
| Sound | Claudio Valdetaro | Sound Mixer |
| Editing | Carlos Roberto Mendes | Editor |
| Sound | Bechen de Loredo | Foley Mixer |
| Camera | Tiago Rivaldo | Second Assistant Camera |
| Costume & Make-Up | Uirandê Holanda | Makeup Artist |
| Production | Tiza Lobo | Executive Producer |
| Visual Effects | Rogério Marinho | Visual Effects |
| Costume & Make-Up | Valeria Stefani | Costume Design |
| Sound | José E. Caldararo | Foley Artist |
| Directing | Janaina Ferreira | Second Assistant Director |
| Sound | Vinicius Leal | Sound Editor |
| Production | Juliana de Carvalho | Executive Producer |
| Sound | Ricardo Leão | Music |
| Sound | Simone Petrillo | Sound Editor |
| Sound | Juarez Dagoberto Costa | Sound Director |
| Production | Carlos Eduardo Rodrigues | Associate Producer |
| Camera | Nonato Estrela | Director of Photography |