[1] The film produced a sequel in 1974, Charleston (Anche gli angeli tirano di destro), still directed by Enzo Barboni.

The two become fast friends, although they have very different characters, Charlie being blunt and aloof, and Sonny being narcissistic and too prone to womanizing.

One day they get hired by a mobster, Angelo, to hit a gambler but they erroneously beat up a US Senator instead, who in turns declares a war towards the underworld.

Here, however, they befriend the Geraces, a poor family, and decide to help them by beating up two other collectors sent by a rival of Angelo, Mr. Colosimo.

The soundtrack was composed by Guido and Maurizio De Angelis, and produced a minor hit with the single Angel and Beans performed by the American-Italian pop duo Kathy & Gulliver.