I'm pretty sure you don't need to be a fan of westerns to appreciate the greatness of that film, Ethan.
Magicians
Actually saw this not long after it came out and remember being surprised by how good it was so I grabbed it on DVD recently and rewatched it. You definitely need to be a fan of Mitchell & Webb and the whole Peep Show vein of humour, and it has some great supporting actors as well. Jessica Hynes is great.
Kick-Ass 2
It's an odd film in that nothing really feels 'complete' yet it's still a fun watch, mainly thanks to the continued ridiculousness and some fun performances from people like Donald Faison, Jim Carrey and Christopher Mintz-Plasse among others (Night Bitch was hot). Hit Girl had a nice little story arc that kinda wound up being...lame. It kind of exemplifies the film's main problem in that it goes for relatively serious story beats and does well, only for it to peter out under all the bombast. It feels like it wants to say something but ultimately feels undermined.
Really bizarre seeing so many British actors, even compared to the first film. I was wondering what had happened to Steven Mackintosh (turns out he was on Luther), and it was odd seeing the 'romantic interest' from the Alan Partridge film as his superhero wife, Jorah Mormont as a mafia boss, other heroes and villains were mostly British TV actors, one of the 'mean girls' is British, and even one of Dave's friends has been replaced by a British actor. I guess they were cheaper.