Wizard of Oz / Dark Side of the Moon

I noticed that Wizard of Oz is showing on television tonight, and it made me think about the rumor/urban legend that Pink Floyd's Dark Side of the Moon was secretly composed as a soundtrack to the movie. For those who have tried it, as I once did, do you agree that there is something to this? For those who haven't (but have too much time on their hands and would like to try), you should begin Dark Side when the MGM Lion roars for the third and final time before the movie begins.

Note that the effects of certain chemicals on the brain may enhance the apparent synchronicity of Wizard and Dark Side -- or so I have read :->