Ah Bart, you crack me up...
As you started your list of "headache" films, I was thinking how much I liked Silent Running, then it was top 'o your list. Guesss we'll have to agree to disagree.
Oh, gawd.... that movie was sooooo bad. I liked the little carts -- I wanted one of those -- and the robots were kinda cute, but the story made me want to apply an ice pick to my hippocampus.
How about Dark Star? Now THERE's a classic piece of... something.