(WARNING: Heavy film-related jargon ahead):
The couple times you added lens flares, you added flares for a standard (spherical) lens - for example (though a badly post-composited one):
STAR WARS was, however, shot with an anamorphic lens rather than spherical (that's why it's in the 2.39:1 aspect ratio instead of 1.85:1), so lens flares *should* look like this:
Some 2.39:1 movies today are shot with spherical lenses as "Super 35mm" and cropped for 2.39:1 (Terminator 2, Harry Potter, Lord of the Rings), and that *would* give you a round flare rather than an oval, and on movies like Blade Runner or Close Encounters effects were done with 70mm film on spherical lenses, therefore lens flares for effects shots (especially CE) are round rather than ovular. But if I remember correct, STAR WARS was shot entirely anamorphic, so all lens flares *should* be ovular.
A nitpick, to be sure, and to be honest it doesn't bother me, I just thought you might find that interesting, and you might be able to use that information when you do ESB and ROTJ. I didn't even notice it the first few times I watched it.
Also, and this isn't really related to anything in ANHR, it's just another anamorphic lens trait that might help for ESBR and ROTJR - circles of confusion (out-of-focus points of light) show up as ovals as well with an anamorphic lens instead of actual cirles:
As opposed to with a non-anamorphic (spherical) lens:
Still working on the DVD-9 torrent, can't wait for it to be done!