Influence on Whedon for Firefly?
The style is strikingly similar and some of the plot elements seem pretty close. In the early scenes everyone treats the kid as an albatross on the ship and want to get rid of him until the captain takes him under his wing.
This is very similar to the relationship between Mal and River in Firefly. Combine that with the space cowboy feel, I can't help but think this might have been an inspiration for Whedon.