In an introduction to Yoyo, Pierre Etaix acknowledged his debt to Federico Fellini. He pays tribute to him at 39:20, when Etaix's small circus arrives in the Alsace village of Barr. Etaix's character sets up a sandwich board to advertise a performance, but is dismayed to see that another one is in town, featuring Zampano, Anthony Quinn's character in La Strada (1954), and his signboard features images of Quinn and co-star Giulietta Masina. The performance is scheduled, European-style, to take place at 8½ (1963).
The film was awarded the 1965 Grand Prix Jeunesse at the Cannes Film Festival, and the First Prize of the International Catholic Organization for Cinema and Audiovisual (OCIC) at the Venice Film Festival.
This film was released in 1965 and was Pierre Etaix's second feature film after The Suitor (1963). It was co-written by Jean-Claude Carriere and was restored in 2007 but was temporarily blocked from viewing for legal reasons until 2010.
Buster Keaton (a huge Etaix influence) gets a brief nod during the party scene at 86:35, when a gaggle of press and photographers place a Keaton-esque porkpie hat on Etaix's head and he waves it away.