Have you ever tried to examine a stop motion film you found online frame by frame to see how it was animated? There's a great new resource for people just like you called WatchFramebyFrame. It's a web site where you can copy and paste a video URL and it gives you many different study options. You can change the frame rate that it plays, skip a certain number of frames and also the play back speed. Unfortunately for me the playback speed seemed to be a bit buggy but the main functions seemed to work just fine.
If you'd like to try it out, go to http://www.watchframebyframe.com/ (just click that link) and get started.