Stephen and Timothy Quay have concluded a two-week shoot in Poland on film about Jan Potocki, a Polish aristocrat, soldier and scholar whose wide-ranging interests included ethnology, the occult and hot-air ballooning.

Polish press reports the production cost $88,000 (200,000 PLN) and described the project as a 'modest, intimate production' of the Quay brothers and score composer Krzysztof Penderecki (Children Of Men, The Shining, The Exorcist).

The Quays declined an invitation to discuss the production or its title. They reportedly plan a world premiere in December or January, after which the film will be screened in the museum of Potocki's Lancut castle, in southeastern Poland, where shooting took place. Reports describe the film as one-third stop-motion animation.

The museum will retain the rights to the film. Polish producer Marek Serafinski said the film would screen at the Animator International Animation Festival in Poznan, Poland, next summer.