The aim of this book is to systematically review studies on the applications of captioning (subtitling) and revoicing (dubbing, audio description, and voice-over) in the foreign language classroom, in order to offer an overview of the state of the art and encourage further research. The literature review presents research on the topic, paying particular attention to relevant experimental studies (i.e. empirical research that involves data collection, and not just a mere description of the experience or the learners' outcomes), examined in terms of research focus, target languages, participants, learning settings, audiovisual materials, captioning/revoicing software, and type of analysis (i.e. qualitative and/or quantitative).