James Franco was on Shootout and tells an interesting story about how films differ in safety measures. The big budget Spiderman went overboard in the name of safety while Pineapple didn't really worry about the whole injury issue.

And if you think he's overstating the lack of safety measure on "Pineapple Express", here's a quote from an LA.com interview.

Franco: The headband came later, after I literally ran into a tree.
You see it in the movie. They used the take, and I had to get stitches. We couldn't stop shooting, so we thought of the headband.