- HD 1080
- Runtime: 108m.
- Status: Released
- 0
- Languages: it
- Country: France, Italy
- Director: Daniele Luchetti
- Stars: Elio Germano, Riccardo Scamarcio, Angela Finocchiaro, Massimo Popolizio, Ascanio Celestini
- keywords: sibling relationship, based on novel or book, in love with enemy, 1970s, fascism, romantic rivalry, coming of age, working class, brother against brother, communism, years of lead, dramedy, 1960s, anni di piombo, late coming of age, left politics
- Production_studio: Cattleya, Babe Film, Film Commission Torino Piemonte, MiC
- Slogan: Sometimes the things we fight about are what brings us closest together.
- The My Brother Is an Only Child is featured in the top rankings of 2007
- #62 in Top Comedy Movies of 2007
Accio and Manrico are siblings from a working-class family in 1960s Italy: older Manrico is handsome, charismatic, and loved by all, while younger Accio is sulky, hot-headed, and treats life as a battleground — much to his parents' chagrin. After the former is drawn into left-wing politics, Accio joins the fascists out of spite, but his flimsy beliefs are put to test when he falls for Manrico's like-minded girlfriend.