Ruben Feffer is a composer, keyboard player, arranger, musical producer and director. One of the greatest talents in Brazilian film music, he has scored the 2016 Oscar nominated and Annecy winner "Boy and the World" and 2019 Oscar short-listed "Tito and the Birds", both animated feature films. He is also musical director of a number of TV shows, aired by networks such as Cartoon Network, Nickelodeon, Disney, Discovery, SporTv, Fox, Netflix and Amazon. He founded Ultrassom Music Ideas - an one-stop shop sound studio that offers integrated audio post-production services, including ADR, voiceover, sound-design and Foley recording, mastering and mixing - and Elo Company - an independent production and distribution company that has over 400 titles. Ruben studied piano, composing and arranging with private classes and with courses at Manhattan School of Music and Berklee College of Music. His artistic talent and the companies he created guarantee a powerful combination for successful projects. "I don't feel that I create the score, I believe I find it. I find the music that was already there, at dialogues, at the script, at the colors."
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Biography from IMDb.
- Composer and producer
- 7 on MovieCove
What are Ruben Feffer's films like?
Across their 7 MovieCove titles with a thematic analysis, their films lean Bonds and Self.
Themes
What they feel like to watch
Ironic 0 · Wry 0 · Earnest 6
A split, not a type: Light 3 · Serious 2 · Dark 1
A split, not a type: Grounded 4 · Stylized 0 · Heightened 2
Gentle 1 · Charged 4 · Intense 1
Steady 3 · Shifting 3 · Whiplash 0
Straight-faced 5 · Some laughs 0 · Funny 1
Slow burn 4 · Even-paced 2 · Relentless 0
A split, not a type: Casual 4 · Engaged 1 · Full focus 1
Easy watch 1 · Affecting 4 · Heavy 1
A split, not a type: Resolved 3 · Open-ended 2 · Ambiguous 1
Moods and endings
- Happy2
- Bittersweet5
AI-generated from each title's plot synopsis and cast list, with extra plot summaries, reviews and Parents Guide notes for titles the model may not know, and the model's own knowledge of the ones it recognizes. Only analyzed titles count, so this covers part of the filmography; the feel axes count films only for now.
Where can I watch Ruben Feffer's films?
As of October 24, 2026, 4 of their 7 MovieCove titles stream on a subscription or free service, most on Netflix (3).
Subscription and free streaming for Ruben Feffer's titles on MovieCove; rent and buy are not counted. Titles are listed by Midcredits score, highest first, at most 12 per service; a dashed chip is a producer credit or a minor one, such as a thanks. A service opens the browse page, which counts movies only, so its number can differ.
Filmography
7 credits, 7 with a MovieCove page.
Midcredits score: 73rd percentile of all films
Only for Love(2022)
Midcredits score: 28th percentile of all shows
Wasp Network(2019)
Midcredits score: 32nd percentile of all films
Tito and the Birds(2018)
Midcredits score: 67th percentile of all films
Boys in Brazil(2014)
Midcredits score: 27th percentile of all films
Open Road(2013)
Midcredits score: 23rd percentile of all films
The Boy and the World(2013)
Midcredits score: 93rd percentile of all films
Career shape
Across their 7 MovieCove titles from 2013 to 2026.
How do Ruben Feffer's films land?
Their typical MovieCove film has a Midcredits score in the 50th percentile, the median of all 6; across their 6 films with reception data, the typical film sits in the 51st percentile for acclaim.
- 75th and up1
- 50th to 74th2
- 25th to 49th3
- Below 25th1
Shape of the crowd
2 of their 7 titles are Crowd Pleasers.
- Universally Loved1
- Cult Classic1
- Crowd Pleaser2
- Broadly Agreed1
- Mixed2
Reviewers score the sound and music 66/100 in their films, across 4 reviewed titles; fans 77, detractors 58. The element that speaks to their work as a composer.
Percentiles are each film's standing among all films on MovieCove; the typical film is the median, so one outlier cannot drag it. Percentiles and reviewer scores count the films IMDb credits them on, for now; the Midcredits score bands, the shape of the crowd and the two cards count their MovieCove titles, shows included (a show ranked among shows), appearances as themselves left out. A descriptor is the shape of a title's IMDb rating distribution against the catalog; "most divisive" needs a spread wider than half of all titles, and a card names only a principal credit: a craft role, and on a show a crew role or a run of episodes, never a courtesy credit or a one-off guest spot.
Who does Ruben Feffer work with?
People who share at least 2 of Ruben Feffer's MovieCove titles; Nicolas Roye shares the most, 2.
- Nicolas RoyeShared titles: Only for Love (2022), Tito and the Birds (2018)See all 2 shared titles with Nicolas Roye
- Gustavo KurlatShared titles: Tito and the Birds (2018), The Boy and the World (2013)See all 2 shared titles with Gustavo Kurlat