Producer, director and projectionist watch an assortment of musical numbers and brainstorm about framing narrative that could contain them all.
| Actor | Role |
|---|---|
 Óscar PulidoNot listed | Not listed |
 Manuel ValdésNot listed | Not listed |
 Miguel ManzanoNot listed | Not listed |
 Joaquín CorderoNot listed | Not listed |
 Martha ValdésNot listed | Not listed |
 Luis AragónNot listed | Not listed |
 Riz OrtolaniNot listed | Not listed |
| RRina ValdarnoNot listed | Not listed |
| EErnesto Hill OlveraNot listed | Not listed |
 Toña la NegraNot listed | Not listed |
| KKay ServatiusNot listed | Not listed |
 Miguel Aceves MejíaNot listed | Not listed |
 Adalberto MartínezNot listed | Not listed |
 Agustín LaraNot listed | Not listed |
| AAlejandro AlgaraNot listed | Not listed |
 Yolanda Montes 'Tongolele'Not listed | Not listed |
 Germán ValdésNot listed | Not listed |
 Katyna RanieriNot listed | Not listed |
 Amália RodriguesNot listed | Not listed |
 Yma SumacNot listed | Not listed |
 Édith PiafSinger | Singer |
 Libertad LamarqueNot listed | Not listed |
 Bill HaleyNot listed | Not listed |
 Arturo MartínezNot listed | Not listed |
| AAltia MichelNot listed | Not listed |