What I know about this film was learned online after viewing it - that it is a parody/sequel to Sergio Corbucci's 1971 Er più: storia d'amore e di coltello. A very informative review of that film says that its protagonist was played by a Milanese, noticeably non-Roman actor, a serious error which this seems to satirize by presenting Franco, a Sicilian, as his illegitimate brother, roped in by Ciccio to inherit the role of neighborhood bully/enforcer. Of course Franco is a wretched coward - until he wears his late brother's hat which transforms him into "The Best" of the neighborhood. The movie just looks good, very nice sets and costumes. Franco and Ciccio deliver the absurd antics we require of them, and it's a fun silly story. Some songs, some jokes, a little romance and an enjoyable experience. What more do you need?