I thought this movie was great! There are some really great interviews with Vaughn, Goldman and others on what it took to get this film to fruition.
Here is a link to a podcast with Jane Goldman: Screenwriter
And here is a decent review at: /slashfilm
What hits home for me, after reading and listening to interviews with the director is that no studio would buy this film. Everyone told them to change the story, wanted characters to be older, etc. etc. And Vaughn had enough and just made it himself!
I just wish I had the funds and extensive network as Vaughn does to do the same thing for my movie instead of running around in circles listening to people who "think" they know what to do. I just want to make MY movie with my team damnit! :)