While you’d expect the timing of the opening sequence to be a little off between the sequel trilogy and the other six movies, because they don’t include the 20th Century Fox fanfare if nothing else, there’s a lot of more minuscule differences here.
If you’re a serious Star Wars junkie then there’s actually a lot of potentially interesting information to glean by watching all nine movies side by side.
Did anybody else know that the Star Wars logo recedes into the background faster in A New Hope than it does in the rest of that trilogy?