The present study aimed to determine whether using culture-themed documentaries in Turkish teaching of B2 level international students has effects on the development of guided writing skills. The study had an action-research design, which is one of the qualitative study approaches. The study group consisted of 12 international students at the B2 level who learned Turkish in the 2022-2023 academic year at the Turkish Teaching Application and Research Center of a state university in Turkey. The data collection process was performed under two headings as "developing an action plan" and "implementing the action plan". During the developing an action plan stage, the themes and documentaries to be used in the activities were determined by receiving the opinions of the experts. In the next step, guided writing activities were prepared in line with the writing acquisitions by consulting experts. The pilot applications of the activities were performed at the Turkish Teaching Application and Research Center of a state university in Turkey. Quantitative and qualitative data collection tools were used and the developmental status of the students was monitored to interpret how the guided writing skill activities developed in the classroom environment progressed. The worksheets of the students were evaluated by using the "Guided Writing Scoring Key", which was developed by the researchers. Students' pre-test, application order, post-test, and permanency scores were determined with this key. Based on the findings obtained in the study, it was concluded that using culture-themed documentaries in Turkish teaching of international students improved the guided writing skill levels of the students.