Has anyone exchanged UK cases for NA cases?

[Acidpickle]

I recently bought the two Naked Gun sequels along with the Hot Shots movie from Amazon.UK because they weren't available in North America. I was hoping they would come in standard North American style cases, but they came in the standard UK thicker style cases. Now my OCD is terrible, and the extra few mm the cases take up drives me insane. Has anyone performed any surgery on the artwork and made them slim enough to fit into a standard NA Viva Elite case? What sort of method did you use to cut and roughly how much did you cut off each side? I think this would work on the movies I have without sacrificing too much artwork, but I was wondering anyone else has done this and received satisfactory results.