Ginga Eiyuu Densetsu Gaiden: Ougon no Tsubasa

Both of these are movie installations of a long running space franchise, and both have updated art and animation when compared to previous releases in the franchise, though these changes are far more agreeable in MSG F91. Most importantly however, is that each of these films contains one of the best anime deaths ever, with the shell casing KO at the start of F91 and the hanging at the end of Ougon no Tsubasa. 

The same main reason to exist: learn the roots of the big hits Bubblegum Crisis Tokyo 2040 and Legend of the Galactic Heroes. The second one is deeply romantic (so sugar on in that gives nausea), but the battle is cool on the other side. Don't expect great artworks here.