- Country: France
- Genres: Comedy, Drama
- Release: 2018-05-09
- Director: Stéphan Archinard , François Prévôt-Leygonie
- Writers: Stéphan Archinard , Alain Gillot , François Prévôt-Leygonie
- Language: French
- Stars: Arnaud Ducret , Max Baissette de Malglaive , Alice David , Jean-François Cayrey , Caroline Silhol , Féodor Atkine , Marina Tomé , Christophe Bourseiller , Bruni Makaya , Hugo Chalan-Marchio
- Runtime: 99 min
- Awards: N/A
- AKA: Mr. Know-It-All (United States of America) , Pan Mądraliński (Poland) , Mr. Know-It-All , Pan Všeználek (Czech Republic) , Monsieur je-sais-tout , Mr. Know-It-All (Canada) , Monsieur Je-Sais-Tout (Canada) , Mr. Know-It-All (United Kingdom) , Умник (Russian Federation) , Monsieur je-sais-tout (France, French Republic) , Señor sabelotodo (Mexico)
- Plot: 35-year-old Vincent Barteau is a 1.92-meter-tall, confirmed bachelor and football coach. At 13 years old, his 1.53-meter-tall nephew Leo is a champion chess player with Asperger's. Their reunion-as unlikely as it is powerful-will turn Vincent's world upside down and offer Leo the chance of a lifetime.
- IMDB:tt7305366
Mr. Know-It-All Cast · · · ALL
Stéphan Archinard
Director
François Prévôt-Leygonie
Director
Arnaud Ducret
Vincent
Alice David
Mathilde
Max Baissette de Malglaive
Léo
Jean-François Cayrey
Louis Germain
Caroline Silhol
Françoise Barteau
Féodor Atkine
Antonio
Christophe Bourseiller
Docteur Jais
Marina Tomé
Lidia
Sayyid El Alami
Sherif
Delphine Sérina
Infirmière HP
Jean Dell
Docteur Picard
Sophie Gourdin
Maryse
François Briault
Responsable supermarché
Sandra Rosinsky
Julie
Sarah Bonrepaux
Vanessa