I didn’t take The Boy with me to see Grindhouse when it came out since I wasn’t sure it was appropriate (and it probably wasn’t at the time). Also, I wasn’t sure he could relate. As he’s older now and I’ve seen it (and it’s on cable), we watched it together.
His reaction was much like mine during Raiders of the Lost Ark: I was okay with it up until Harrison Ford rode the submarine across the Atlantic. And it just got stupider from there. Not too long after, I realized that it was basically a kiddie movie, like Star Wars, and you can’t really apply rules of logic or sense to it. (And as a result I enjoyed Temple of Doom a lot more.)
Anyway he was appalled by the stupidity.
I still think it was 20 minutes too long but I found the various film corruptions a lot more interesting in the re-watch. Rodriguez cleverly used the scratches, blurs and distortions to punctuate parts of the action.
Anyway, the trailers are still the best part.