This article traces the trajectory of one particular scene in the work of three media students writing and filmmaking. The analysis scrutinizes the role of semiotic tools, such as synopsis and storyboard, in students’ filmmaking practice. Moreover, the use of interactional data combined with textual data allows for a rich recording of the activity, aiming to integrate a multimodal analysis into a sociocultural perspective on learners’ composing practices. The findings indicate that the students are not able to transfer their particular meaning from the written mode into the language of moving images because they downplay the role of the semiotic tools available to them in the educational context.