I call it Star Wars, or "the first Star Wars" (depending on who I’m talking to).

Some people I know still call it La Guerre des étoiles, which I find quite refreshing. After all the French logo at the beginning of the movie was used until 1999 (yes, for the SE too, but not for TPM). The 2004 DVD’s introduced the English logo with the French crawl (I guess that’s the same for all foreign versions with a translated crawl).

The “problem” that arose was the following one: From then on, how to officially name this movie? The 2004 DVD’s tried (look at the logo)… I’ve always found this title shitty and inconsistent as ESB and Jedi didn’t have that problem (litterally Star Wars: Star Wars A New Hope, seriously? And at the bottom of the back cover (below the X-Wings) it even says Star Wars, Épisode IV : La Guerre des étoiles Un nouvel espoir). The 2006 DVD’s corrected that however, and just titled it Star Wars: A New Hope (with the Roman numerals in the logo).

But as I said, it’ll always be just Star Wars to me :3