Poland is a strongly Catholic country, so the success of reality television, with its sexual content, has sparked fierce debate.
They are particularly concerned about the effect on younger viewers, and are lobbying for the government to regulate the growing phenomenon.
"They draw in millions of young, morally defenceless viewers."
Ban
The directors - including Andrzej Wajda, who has directed some 40 films - appealed to the National Council for Radio and Television in Poland to ban forthcoming reality TV show Amazons.
The format of the show keeps cameras trained on six couples as they flirt with one another and swap partners.
Polish television has embraced the reality TV craze with a passion. The final episode of the Polish Big Brother drew six million viewers, out of a population of 39 million people.
Poland is a strongly Catholic country, so the success of reality television, with its sexual content, has sparked fierce debate.
However, TV stations have defended their shows against accusations of sensationalism. "One cannot hold it against us that we deliver our viewers their favourite entertainment," says Zygmunt Solorz, Polsat's president.
"We won't show any sexual scenes in Amazons, even if there are some."
Condemnation
There has been condemnation of reality television in the United Kingdom too.
Vanessa Feltz, after spending a mere four days on the BBC/Channel 4 co-production of Celebrity Big Brother, was vociferous in her criticism.
She variously described being on the show as "damaging", "ridiculously intense" and "unnerving".
Feltz said that she "hardly survived the experience" of living with five other celebrities, including Anthea Turner, Claire Sweeney, Jack Dee, Chris Eubank and Keith Duffy.
And novelist Germaine Greer, writing recently in The Guardian, described Big Brother 2 as "about as dignified as looking through the keyhole in your teenage child's bedroom door".