Fun video by ExpoLineFan posted to YouTube this morning showing a flyover of the future Westside Subway Extension using Google Maps and animation.
Two cautionary notes: the alignment shown in the video is only a general description and is not completely accurate, particularly in the western Beverly Hills to Westwood section. Here is a link to a Metro document with maps that show the precise route the subway will take and a more general map is below.
The video is also a little overly enthusiastic and takes the line all the way to Santa Monica. The Westside Subway Extension is only funded at this time to the Westwood/VA Station.