Movie Clips and Wing Clips are sites that can be used as resources for short 2-3 minute popular movie clips that can support your literacy teaching. There is a contents that organizes the clips into themes. These two sites are Free.
I used clips from these sites to introduce and discuss virtues (character education), to illustrate a point and to critically analyze the scene.
Wing Clips: http://www.wingclips.com/themes/virtue
Movie Clips: http://movieclips.com/Jpa9-virtue-theme-videos/#p=1
It goes without saying, to view and review all clips prior to using with your students.
I use the above sites when I don't use Learn360 (http://www.learn360.com/index.aspx)which which is a multi-media educational resource site that the Ministry has a licensing agreement for publicly funded schools in Ontario. All other users must subscribe.