Mister Ten Per Cent is a 1967 British comedy film directed by Peter Graham Scott and starring Charlie Drake, Derek Nimmo and Wanda Ventham.
Attempts to instil some life into the proceedings with a few risqué jokes and some desperate malapropisms ('I will not have my work pasteurised') are capped by a tear-jerking finale which belongs more to a Norman Wisdom film than to Charlie Drake's hitherto much sharper wit.
"[2] Kine Weekly wrote: "The story of the would-be serious playwright whose work makes audiences laugh is not as crazy as it appears and, indeed, has a historical basis in the shape of a play called Young England (1934) that had 'em rolling in the aisles a generation ago.
Then the whole plot explodes in an orgy of brilliant slapstick when Drake, as Percy, deploys his knockabout talent in an amusing variety ideas to stop his play from being laughed at.
Co-scripted by Drake and Norman Hudis, it's a comedy about the deliberate staging of a box-office bomb to claim the insurance, which predated Mel Brooks's similarly themed The Producers by a year.