Select your videos. Movies that you already know will help to expand your vocabulary more quickly than unfamiliar ones. There are also many videos created specifically as language learning tools. Watch one program every day for rapid vocabulary and comprehension improvement. The Spanish channels on your antennae, cable or satellite are good sources for programming, as are local libraries and Internet sites that stream video like YouTube, Hulu and Netflix.
Select the caption mode and set your device to Spanish subtitles. If the language track is not already in Spanish, select this as well. On live television, use the second audio programming setting of most TVs to watch English programming in Spanish. It will instantly dub your program into Spanish.
Watch the video over and over. After building significant comprehension, try to transcribe scenes from a given movie or show in Spanish, then recheck yourself by watching the video again.
After watching a given program in Spanish many times, switch over and watch it in English again. Try to translate a section of the program into Spanish. Go back and watch it with Spanish subtitles again and check your work. If some of the words are translated differently, look them up and evaluate the meaning behind your choice and that of the translator.