Corsican Brothers was a Cheech and Chong movie (based or not on Dumas' work?).
It's a comedy, but a departure from their usual stoner comedies for which they are pioneers. It's not their best movie, I saw it back in the day, they are twin brothers, in revolutionary France or round abouts. The only thing I remember is that when one brother feels pain (or pleasure), the other one feels it - (a device later borrowed by Tomax & Xamot I think).
It's not horrible but what's the point of a Cheech and Chong movie without all the drugs?