I loved this movie when I saw it in the 1970's. Now the Silent Running Trailer looks a bit corny to me. Kind of like watching the TV show Space 1999. The trailer also gives away most of the story.
If you look at the original Star Wars Trailer, it seems pretty horrible. I don't think that they knew how to make trailer's in the 1970's.
Silent Running has a 67% rating on Rotten Tomatoes. So does Space Station 76, which is a recent parody of 1970's science fiction movies. This one looks so weird I am not sure I could sit through it. I might give it a try though.
One hundred and eight days till Star Wars: The Force Awakens. Meanwhile I will have to be content with watching Star Wars Rebels in October.