Serenity was ok, but it's far from the best example of acting or script writing. At least it was better than alien ressurection, which was also written by Joss "Buffy the Vampire Slayer" Wheedon. Really, the script and acting isn't any better than the worst of the Starwars film but at least Starwars was doing it way before. Serenity was a lot of fun though, more fun than about half the 'wars films, i wouldn't describe it as classy either though.
Chronicles of Riddick was also poor, in its own right and esp as a sequel of sorts to the excellent Pitch Black.
Chronicles of Riddick was also poor, in its own right and esp as a sequel of sorts to the excellent Pitch Black.