Continuity: Charlie comes down to Earth from heaven to find Gabrial's Horn, and in the process, wants to go get a collar which allows other people to see him (he would normally be invisible, being an angel and all...)In one scene, before he gets the collar, he is talking to Carface, another dog, and asks him where he got his un-invisibility collar from. The problem is that while Charlie is asking Carface where he got the collar, the usually collar-less Charlie is actually wearing the collar he is asking about. Then in the next scene, he is again, collar-less.
