The film's protagonists are the orphaned children taken into custody by the state and institutionalized at Children's House no. 6 from Bucharest. For Mészáros, the concern for the situation of children left orphaned during the Second World War is autobiographical: the director directly experienced the absence of parents in her own childhood.
Unfortunately the movie Let All Children Smile is not yet available on Disney Plus.
| Directing | Márta Mészáros | Director |
| Writing | Márta Mészáros | Screenplay |
| Crew | Dorian Segal | Cinematography |
| Sound | Eugen Popescu | Music |
| Writing | Eva Sîrbu | Screenplay |
| Sound | Vasile Nițu | Sound |
| Editing | Anton Belici | Editor |