While I'm at it, Teague asked what's wrong with Star Wars, so....
Cut the jawas to the bare minimum, and bring Luke in 4 minutes earlier.
Put Luke's intro to the Force before the destruction of Alderaan, then imply that hours have passed when Luke gets the hang of it and Obi-Wan goes weak.
Spice up Obi-Wan's death scene with a little Force (but no jumping). Then Obi-Wan should be sliced in two and react before disappearing. Luke briefly goes after Vader, who blocks his blaster shots effortlessly then closes a blast door between them.
Then Luke gets a chance to show that he's a great pilot. He jumps in a T-16 or shuttle to escape and outmaneuvers 2 TIE fighters to crash into each other while Han and Leia shoot some from ball turrets (giving her more to do).
The intro of the battle briefing is too abrupt. When they first arrive and Leia says to get the Death Star plans from R2, Luke and Han should veer off and encounter Biggs and Wedge. Luke introduces them, and they introduce the X-Wing ("Same control setup as the T-16!") And Wedge should be black, another pilot should be a woman, and another should be an alien.
During the battle, Leia needs to order each attack run instead of just looking worried. At the climax, she should say that time is running out and ask who is in position for another run. Only Luke.
3P0 has been monitoring Imperial transmissions and announces that Vader is the one in the new-style TIE fighter. Likewise, Vader should sense "This one is using the Force.... Obi-Wan's apprentice!"
In the medal ceremony, Wedge and the others should already have medals. Chewie has to kneel, providing the final moment of levity instead of all the goofy smiling.
Warning: I'm probably rewriting this post as you read it.Zarban's House of Commentaries