I recently watched a special on National geographic which debunked all of the conspiracy theories. Sorry I don't remember all of them but it did state.
Theory 1: Why does the flag wave with no wind?
Answer: The Flag was made on a hollow alluminum shaft, now if you twang something flexible like that it vibrates. The pole was vibrating from the motion of being planted, it continued becuase there was no gravity to stop it.
Theory 2: Why are there no stars in the picture
Answer: There are you just cannot see them becuase they are blotted out by the light reflecting from the surface.
