zombie84 said:

The line about Chewie isn't racist in any way. She just made a snide comment based on his appearance. If he had glasses and she said, "would someone get four eyes here out of my way," that wouldn't necessarily make her prejudiced against people with glasses. If wookies were short and she said, "would someone get this shrimp out of my way," it wouldn't make her prejudiced against little people either. It's just a sassy remark and it fits her character very well.

You could use the exact same argument to justify racial slurs.

It is unfortunate that today's society cannot tolerate any snide comments based on heritage or the color of skin, but evidently some consider it a sign of underlying discrimination against people with these characteristics, which is the true wrong in it.

To be technical, the comment isn't racist but rather speciesist. I don't know if Leia's comment was a sign of some underlying discrimination against Wookiees or not. Only at the end of ESB does she seem to treat Chewbacca with much respect. From watching the movies, we know Chewbacca is a senient being with as much intelligence as a human, so it's curious why Leia persists with the jabs at Wookiees.

To be fair, she doesn't seem to treat any of the main characters with much respect so I find it unlikely it's of any speciesist underpinning. It's an aspect of her character. It's a defense mechanism she's formed to keep away those who would take advantage of her. And she was quite angry at the time the comments were made.

Of course, it's silly to say the comments don't belong in the movies. It's nice to have these character aspects to think about. I also think it's silly to keep racial comments out of adult movies. We've all had these thoughts and we might as well acknowledge it and realize it doesn't indicate any fundamental discrimination.