The purpose of this thesis is to identify and define features of rhetorical questions in English and to verify how they affect the matches and mismatches of mood structures and meaning functions when translating English spoken texts into Korean subtitles. Toward this goal, Chapter 2 provides a theoretical framework for rhetorical questions and subtitling. First, we will examine features and meaning functions of rhetorical questions in each language from pragmatic perspective. Rhetorical questions in English show discrepancies of form and meaning, which means they accomplish indirect speech acts and need to be interpreted according to the discourse context. Second, the features and constraints of subtitling will be elucidated. Chapter 3 introduces the text which will be analyzed and how the text will be analyzed. In designing a research plan to satisfy the above mentioned aim, Harry Potter movies have been chosen as the texts, and the standards for analyzing texts are as follows: frequency of general questions and rhetorical questions in movie scripts; changes in the interrogative mood into other mood structures; and the meaning functions of rhetorical questions. Chapter 4 is focused on the matches or mismatches of mood structures and the meaning functions in ST(Source Text)-TT(Target Text) pairs’ rhetorical questions by analyzing several example texts. The findings of this study can be summarized as follows. First, as an interrogative mood, most rhetorical questions in English can be translated into the same mood structures in Korean. However, illocutionary force, statement or assertion, in rhetorical questions does not appear explicitly by the changes of mood types in subtitling. Due to the constraints of subtitling, a few rhetorical questions in ST are omitted. Second, judging from the discourse context between conversational participants, rhetorical questions have a variety of meaning functions such as emphasizing the speaker’s statement, begging for agreement, showing uncertainty or expressing blame. The intimate relationship between participants uses rhetorical questions more than in socially distant or hierarchical relationships. More detailed research of diverse text types, larger-text samples and more elaborate analysis criteria are needed for further studies.