A teen girl finds her foster sister annoying, but deep down, she feels that her new sister is replacing her previous foster brother. Can she learn to love her sister?
Big Sis made its world premiere at Film Prize Junior Louisiana — one of the most unique student film festivals on the planet.
Big Sis is available for streaming at the Film Prize Junior Louisiana Virtual Festival.
Big Sis won Best High School Drama at Film Prize Jr., Louisiana 2026.
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Big Sis was written, directed, filmed and performed by creative, homeschooled, grammar, middle and high school students.
| Harper | Harper Mabry |
| Ellie | Ellie Carpenter |
| Mom | Katie Aranda |
| Ellis | Ellis Mabry |
| Carson | Gabriel Leighton |
| Lady in the Park | Kathy Harvey |
| Social Worker | Linda Hook |
| Foster Girl | Lucy |
| Director | Genevieve Aranda |
| Writer | Genevieve Aranda |
| Editor | Genevieve Aranda |
| Cinematography | Genevieve Aranda |
| Katie Aranda | |
| Sophie Lawrence | |
| Sound | Genevieve Aranda |
| Katie Aranda | |
| Luke Aranda | |
| Ellis Mabry | |
| Ellie Carpenter | |
| Production Design | Sophie Lawrence |
| Webmaster | Tom Aranda |
| Teacher Producer | Katie Aranda |
| Clavier Music Soft Piano |
| Freesound Community Birds |
| Eryliaa Gentle Rain |
| Sonican Classical Children's Music |
| Juliush Soft Rain Delicate Piano |
| Delosound Emotional Piano |
| The FAM House (Foster Adoption Ministry) |
| T.O. R.V. J.Z. B.Z. J.Z. |
| We will remember you forever |