This study determines the improvement of students' creative thinking using problem-based learning models assisted by interactive multimedia on the concept of substance pressure. Research conducted at SMP 2 Mandalawangi, using one-sample classes, class VIII the second semester of 2017/2018 academic year, was held in May 2018. The method used is quantitative research, while the type used is quasi-experimental research, using a one-group pretest-posttest design research design. The instrument used was a test instrument for creative thinking skills in the form of elaboration questions on the concept of pressure. The analyzing data using paired sample t-test or paired sample t-test analysis to see the effect of PBL on creative thinking skills, and n-gain to see an improvement in creative thinking skills. The study gives an increase in students' creative thinking skills. The average value of 41 to 81 with an n-gain of 0.68 or an improved of 68%, which included the medium criteria. Paired sample t-test results indicate that there is an influence of the use of problem-based learning models assisted by interactive multimedia on students' creative thinking skills on the concept of substance pressure.

In the industry of Indonesian movies, the spotlight is mainly on mainstream movies, leaving sidestream movies underlit. Sidestream movies are less popular, yet they provide various themes and creativity more than the mainstream. Sidestream movies also often brought back prior themes from the mainstreams, meaning that they are both parallel. The less popularity of the sidestream movies is mainly affected by unbalanced movies' distribution line in Indonesia, which benefits only the mainstreams. Albeit deprived on the distribution, sidestream movies correspond the mainstream, in this era of industry 4.0, through their themes and discourses. This study aims to investigate two sidestream movies entitled Jumprit Singit and Nunggu Teka as the primary data. The result shows that the discourses of the two movies still rely on the conformity of norms and manner of Indonesian people. This idea is built through the movies' narrative discourses, showing a smaller dimension if they are compared with mainstream movies. Sidestream movies with drama genre show more conservatism and positivism whereas movies with comedy genre deliver more satire. Eventually, the relation between the discourses of mainstream and sidestream films are not always constructed in an oppositional relation as shown by this study.