| 100% | OTELLO | 6 | Verdi opera based on a Shakespearean play |
| 82% | OTELLO | 6 | Verdi opera based on a Shakespeare play |
| 76% | ERNANI | 6 | 1844 Verdi opera based on a Victor Hugo play |
| 71% | RIGOLETTO | 9 | Verdi's opera based on a Victor Hugo play |
| 68% | ATTILA | 6 | Verdi opera based on a historic invader |
| 68% | OTELLO | 6 | Verdi opera based on a Shakespeare tragedy |
| 63% | BARBEROFSEVILLE | 15 | Opera based on a play by Pierre Beaumarchais, with "The" |
| 61% | AIDA | 4 | Musical based on a Verdi opera |
| 60% | AIDA | 4 | Elton John musical based on a Verdi opera |
| 59% | AIDA | 4 | Elton John Broadway musical based on a Verdi opera |
| 59% | AIDA | 4 | Elton John/Tim Rice musical based on a Verdi opera |
| 55% | OTELLO | 6 | Verdi opera based on Shakespeare |
| 54% | LATOSCA | 7 | 1887 play on which a 1900 opera is based |
| 52% | SAPHO | 5 | Massenet opera based on a Daudet novel |
| 52% | ELEKTRA | 7 | Strauss opera based on a Sophocles tragedy |
| 52% | WERTHER | 7 | Massenet opera based on a work of Goethe |
| 51% | RIENZI | 6 | Wagner opera based on a 14th-century Italian patriot |
| 50% | LULU | 4 | Opera based on two Wedekind plays |
| 49% | ASOLDIERSSTORY | 14 | 1984 film based on a Fuller play |
| 49% | PVALLEY | 7 | Starz series based on a Katori Hall play |
| 49% | VERDI | 5 | He wrote several operas based on Shakespeare plays |
| 49% | RAIN | 4 | Play based on a Maugham tale |
| 48% | ATTILA | 6 | Historical figure on whom a Verdi opera is based |
| 48% | AIDA | 4 | Elton John musical based on a work by Verdi |
| 48% | ODD | 3 | "The ___ Couple" (sitcom based on a Neil Simon play) |
| 48% | KINGLEAR | 8 | Shakespearean play based on Leir of Britain |
| 48% | THEMATINGOFTHESHREW | 19 | Play based on a "Wild Kingdom" episode? |
| 47% | BOPHA | 5 | 1993 Danny Glover film based on a Percy Mtwa play |
| 47% | ODD | 3 | "The ___ Couple" (classic sitcom based on a Neil Simon play) |