Keywan Karimi ran into trouble with Iran's powerful Revolutionary Guards over a documentary he shot called "Writing on the City" about graffiti in the capital Tehran.
He spent 15 days in solitary confinement in 2013 and was accused of making "propaganda against the regime" and "insulting religious values".
But since then, the young avant-garde filmmaker told AFP, several other "ridiculous" charges have been added including drinking alcohol, having extramarital affairs and making pornography.
Karimi was sentenced to six years in prison in 2015 but after an international outcry in which acclaimed Iranian directors including Jafar Panahi and Mohsen Makhmalbaf rallied to his support, five years of the term was suspended.
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The threat of the 233 lashes has not however been lifted, and the prison authorities are now demanding that the punishment be carried out.
"I am not a political activist," Karimi told AFP in a telephone interview. "I am not being sent to prison because I oppose the regime but because I am a filmmaker."
"Writing on the City" has since been shown at film festivals in France, Spain and Switzerland and in the meantime Karimi has continued working on another film project.
"I am waiting for them to come for me. The support I have received helps break the solitude and solidarity from the film world also warms my heart," he added.
Karimi said that he could have immigrated "quite easily but I want to remain to defend my right to live my life.
"When the (Turkish Kurdish director) Yilmaz Guney won the Palme d'Or at Cannes for his film 'Yol' (in 1982), he said that cinema was a part of his political activism.
"He was an activist who was part of a political organisation. But what I draw from his experience is that making films is also a kind of struggle, a struggle in defence of the courage to think," Karimi insisted.