The Empire Strikes Back Added To National Film Registry

aztec1430 writes "Airplane!, The Empire Strikes Back, The Exorcist, and All the President's Men, were among the 25 films named by the Library of Congress to the National Film Registry on Tuesday for their cultural, historical or aesthetic significance. Now, which version was added? And will each new Lucas-a-fied version need to be resubmitted every year? ;)"