In the language study, everything done by people via the utterance is called speech acts. Speech acts is not only found in the daily life but also in the movie. This research focuses on speech acts used by some characters in the trial process in Harry Potter and the Order of the Phoenix movie’s subtitle. The purposes of this research are to explain the types of speech acts and to analyze the most dominant illocutionary acts produced by some characters in the trial process. Besides, the aim of this research is also to find out and describe the intended meaning of speech acts used by some characters. The object of this research are texts in the movie’s subtitle form. Austin (1962) theory of speech acts is used as the major theory of this research. The types of research in this study are qualitative and quantitative research. Qualitative research is used to analyze the data in the text form. Quantitative research is applied to count the types of illocutionary acts used by some characters to reveal which types of illocutionary acts dominantly used. There are 34 utterances to be analyzed. The result of this research shows that there are five types of illocutionary acts used by some characters in the trial process. They are assertives, directives, commisive, expressive and declarative. This study also presents that the dominant illocutionary acts used is assertives with 56 % or 19 utterances. It indicates that some characters use assertive because they want to express the truth or falsity in their opinion referring to the case in the trial process. Besides, they also want to show and to convince their strong argument.
Keywords: assertives, some characters, speech acts, types of illocutionary acts.