Cheech & Chong's Up In Smoke has got to be one of my all-time favorite movies. Back in the day, my friends and I saw it dozens of times, memorized all the bits, I even bought the soundtrack on vinyl. (remember vinyl?) They did a number of  sequels, none of which were nearly as funny as the first, but they did have their moments. So, what do you do when the characters are almost retirement age, but you still want to milk those old stoner jokes? You come up with an appropriate sequel!