I'm assuming this question is mainly referring to how Deadpool was... Well.. Screwed up.
Ryan Reynolds was a friggin' perfect Wade Wilson and then what do they do to The Merc With The Mouth?
They SHUT his frigging mouth. That's just awful.

I understand that sometimes things need to be changed in adapting a character from the comics to the big screen so there are some instances where I can overlook it.

Zipping Wades mouth shut wasn't one I could overlook.