Provided in some embodiments is a computer implemented method that includes receiving time-aligned script data including dialogue words of a script and timecodes corresponding to the dialogue words, identifying gaps between dialogue words for the insertion of video description content, wherein the gaps are identified based on the duration of pauses between timecodes of adjacent dialogue words, aligning segments of video description content with corresponding gaps in dialogue, wherein the video description content for the segments is derived from corresponding script elements of the script; and generating a script document including the aligned segments of video description content.