X-Men: First Class
It wasn't bad, but having been a total nerd for the comics back in the day — from the late '70s, thanks to back issues, through the early '90s — I cannot overlook the liberties they take with established characters and their backstories. Same problem with X-Men Origins: Wolverine. It's pure cognitive dissonance.
Oddly, the Avengers movies (Iron Man, Hulk, Thor, Captain America) have been much more faithful to the comics, and thus easier for me to enjoy.
---
The Chronicles of Narnia: The Voyage of the Dawn Treader
Remarkably faithful to the book, as the last two movies were, but being faithful this time means having the same episodic, island-hopping story. Good for kids with short attention spans, not so much for adult fans.
Unfortunately, the one big change they made to give the movie an overall story arc ends up short-circuiting the surprise of the Island Where Dreams Come True. That scene in the book — when the crew realizes exactly what it means and how they've been duped — is excellent. In the movie, on the other hand, it's the climactic battle for which they've been preparing all along. Feh.
---
Conan O'Brien Can't Stop
Conan is just too normal and nice to be a nexus for drama, so they really had to stretch to find a narrative for this documentary: "Fortysomething workaholic goes on national tour, gradually becomes exhausted and a bit short-tempered." Hell, if I started something like that, I'd be ripping off heads by the end of the second week. For diehard fans only.