Whatever you think was the first feature length movie that Steven Spielberg wrote and directed, you're probably wrong. It was not ET or Jaws. It was The Sugarland Express. Not a perfect movie by any means, and a bit too long, but even if it weren't a true story, you would be drawn in to the characters and the script/dialogue, which are pitch perfect. Not surprisingly, there is only one big name star, and it's not Kate Hudson although she might have been better in the role, confirming that the casting and acting can be terrific without recognizable thespians. If you liked Bonnie & Clyde or O Brother ,Where Art Though, you will find this worthy of the genre.
IMDb Link: http://www.imdb.com/title/tt0072226/?ref_=nv_sr_1