Here is the direction I'm taking: Obi Wan crashes on Tatooine as he is fleeing from his pursuers. He wants nothing to do with the politically-motivated wars. That is what he is running from, as Jedis are desirable fighters. After crashing in the desert at night, he makes his way toward civilization (either toward Mos Eisley or the Lars homestead) with adventure along the way. Either he rescues Anakin or Anakin rescues him from bandits,. Then they go to the homestead. Obi Wan's pursuers are still after him and with Anakin's help, they escape from the planet, having developed a new mission along the way...

The nighttime scenes are going to bring a new dimension, we may not even see much of Mos Eisley. I'm debating whether the cantina should play a role or not. Like ANH, the movie is going to be a robust and complete work on its own, with Anakin well on his way to Jedi-hood, so that in E2 it's something like Luke's appearance in ROTJ. I have "Butch Cassidy and the Sundance Kid" on the backburner of my brain in terms of the friendship and focus of the story.