Star Wars IV: A New Hope is a wonderfully entertaining film that is unique in its setting, and opens up a new world for viewers due to its use of CGI.

Other films that are in the same vein as Star Wars IV: A New Hope are movies such as Star Trek, Green Lantern, and Close Encounters of the Third Kind.

Star Trek marketed their USP by positioning themselves as a new and enhanced version of the old films of the series.
The Green Lantern movie was marketed by being positioned as a space opera that was comparable to the Star Wars franchise.
Close Encounters of the Third Kind positioned itself as a film that explored the concept of aliens visiting the earth, which while not the same as Star Wars, contains the same feel of wonder as Close Encounters.

Unlike Star Trek, Star Wars IV: A New Hope gives you a brand new setting, as well as a complete new use of CGI.

Star Wars IV: A New Hope differentiates itself from its competitors such as Star Trek and Green Lantern from its varied setting and use of CGI, and from Close Encounters of the Third Kind by its different exploration of alien interaction.