Your Highness

Impressions before seeing it
The trailer was awesome. A fantasy comedy with swearing and a good cast? Hells yeah!

How was it?
The most surprising part is that there weren't as many jokes as I expected. Or, rather, the majority of them were already shown in the trailer, making it look like more of a comedy than it is. I mean it is funny, but it's also a legitimate fantasy movie. On the blu-ray featurette, Zooey Deschanel aptly described it as "a dirty Princess Bride", which I think sums up the tone of the movie. If you removed Thadeous (McBride) from the movie, it pretty much would be a straight up fantasy. Most of the comedy comes from the premise that Thadeous is a lazy, cowardly, screw-up going on an adventure that requires the opposites of those qualities.

I remember Danny McBride saying that he and his buddies (i.e. the team behind Eastbound & Down) made this movie as a tribute to the fantasy movies they grew up watching. I don't know how much of Your Highness includes direct references, but it does have a scene that I hope is a nod to the great wagon chase scene in Willow, because it's fairly similar, and there is a labyrinth but that may or may not have anything to do with the movie Labyrinth. The sets and creatures and special effects all looked great, and as a fantasy nerd I loved taking it all in.
The American castmembers tried on some classy British accents and I think they were all decent enough not to take me out of the experience, and even though everyone except McBride was playing it straight, they had their funny moments too. Not enough Zooey Deschanel in the movie though, but that is a personal bias.

Recommendation
Ultimately, this movie was a flop at the box office and isn't very well liked, and if you look to it only for laughs then it can be disappointing (less so if you haven't seen the trailer or any clips). It took me about 20 or 30 minutes to really get into it, and then I started to enjoy it for the fantasy adventure that it is. And I do still love the idea of a fantasy movie with swearing. I hope to see more of that.