This study aims to examine the unique educational films prepared by science teacher candidates about biotechnology applications and getting their perceptions on the process/the educational films they have prepared. The phenomenology method was used. The study group consists of 30 sophomore teacher candidates. Teacher candidates prepared educational films. Then, the perceptions of the teacher candidates about this process were taken. According to the results of the study educational movies were prepared by teacher candidates by way of their writings about stem cells, genetically modified organisms, nanotechnology and cloning. The educational films focused on the positive and negative aspects of these biotechnology subjects, on the basis of daily life scenarios. Even though the short movies contained both negative and positive references, they mostly had a positive note.