USA
Paramutual Pictures wants to know where all the money is going so they hire Morty to be their spy. Morty works for Mr. Sneak and gets a job in the mail room so that he can have access to the lot. But all that Morty ever finds is that he can cause havoc no matter what he does. - IMDb
| Bara på skoj |  Sweden |
| Der Bürotrottel |  Austria |
| Der Bürotrottel |  West Germany |
| Chłopak na posyłki |  Poland |
| Curierul |  Romania |
| Dostavljac |  Yugoslavia |
| The Errand Boy |  United Kingdom |
| The Errand Boy | USA |
| The Errand Boy |  Canada |
| De Golpe en golpe |  Mexico |
| De Golpe en golpe |  Argentina |
| Idiot u Holivudu |  Serbia |
| Jerry Hollywoodissa |  Finland |
| Jerry som stik-i-rend-dreng |  Denmark |
| Il mattatore di Hollywood |  Italy |
| Mocinho Encrenqueiro |  Brazil |
| O Jerry Lewis periplanomenos (transliterated title) |  Greece |
| O Mandarete |  Portugal |
| O Mocinho Encrenqueiro (cable TV title) | Brazil |
| Szerencsétlen flótás |  Hungary |
| Un detectiv ca nimeni altul | Romania |
| Un espía en Hollywood |  Spain |
| Le zinzin d'Hollywood |  France |
| Le zinzin d'Hollywood | Canada |
| Момче за всичко |  Bulgaria |
| Посыльный |  Soviet Union |
| 底抜け便利屋小僧 |  Japan |
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Darby Hinton [4] | Bit Part |
