Netflix Logic?

After not touching my account for many months, I recently added a bunch of flicks to my queue. I also rated a bunch more movies that I've seen.

For those of you who aren't members, Netflix will give you recommendations of movies they think you might like based on other movies you've rated or those that you have in your queue. Ok, I'm down with that. Always happy to hear about another movie I might like. However, I'm not sure I understand the logic behind some of their recommendations.

For instance, they recommended the Disney/Pixar movie Cars. Ok, I'm fine with that. Cute movie. Loved it. What has me confused is they recommended it because I liked Pursuit of Happyness with Will Smith. Can anyone out there clue me in on the link between these 2?

Or they recommended Pan's Labyrinth because I liked Little Miss Sunshine. Huh? I'm not seeing how a light-hearted, indie comedy has anything to do with a dark, gory fantasy set in WWII Spain. Someone enlighten me, please.

Another puzzler was they recommended Wait Until Dark because I liked The Philadelphia Story. The Philadelphia Story is a screwball rom-com with Katherine Hepburn, Cary Grant, and Jimmy Stewart. Wait Until Dark is a thriller about a blind woman being stalked by a thug who's after a stash of heroin that was hidden in her apartment without her knowledge. Again, I fail to see the connection.

I'm sure the recommendations are all good movies in their own right, but is anyone else somewhat puzzled by the recommendations they've received?