Adolescents have low levels of physical activity, one of which is caused by poor perceptions of the components of the Health Belief Model (HBM), while a sedentary lifestyle increases the risk of long-term health problems. This study aims to describe the HBM (perceived susceptibility, perceived severity, perceived benefits, perceived barriers, self-efficacy, and cues to action) in students before counseling, and analyze the differences in HBM (perceived susceptibility, perceived severity, perceived benefits, perceived barriers) after counseling with film media. The study used a quasi-experimental design with a cross-sectional approach, involving 51 eighth-grade students of SMP PGRI 363 Pondok Petir who were selected using a total sampling technique. Data were collected using pre-test and post-test questionnaires, then analyzed descriptively using the median as the cut-off point. The results showed an increase in all four HBM constructs evaluated: perceived susceptibility increased by 50.0% (median 14 to 21), perceived severity increased by 44.4% (18 to 26), perceived benefits increased by 44.0% (25 to 36), and perceived barriers increased by 54.5% (11 to 17). Before the counseling, the majority of students were in the medium category for self-efficacy (65%) and cues to action (96%), but these two constructs were not re-evaluated after the counseling. Further research is needed to fully measure the increase in students' HBM perceptions of physical activity through film media.