The aim of this study was to investigate the effectiveness of DVDs in enhancing student vocabulary development in second-language contexts. To this end the study sought students’ perceptions of DVD subtitles and their level of vocabulary knowledge. It also examined the extent to which watching a DVD with or without intralingual subtitles can improve students’ vocabulary recognition and recall. The literature review included a discussion on the variables operant in second-language acquisition; the use of visual media on vocabulary learning; and the effects of subtitling practices as a didactic tool for vocabulary recall and recognition. The study adopted a mixed-method approach and data were collected through a survey and openended questionnaire; a Vocabulary Levels Test; a Vocabulary Knowledge Scale Test; and vocabulary intervention activities. The findings indicate that DVDs can enhance students’ vocabulary in second-language teaching and learning contexts. More importantly the study confirms audio-visual images create greater sensory input that is, “words associated with actual objects or imagery techniques, are learned more easily than those without” (Chun and Plass, 1996:183). / English Studies / M.A. (TESOL)