The 30-degree rule is a basic film editing guideline that states the camera should move at least 30 degrees between shots of the same subject occurring in succession.
This edit represents a bad version of continuity in which the camera angles don't make sense or are not in the 30 degree angle. this edit has many continuity errors as we have filmed it from various other angles that would make dialogue very confusing to the people watching.
This edit is a good example of when continuity is used to create a realistic atmosphere during dialogue. this stays within a 30 degree angle. In a good example of continuity you would expect the dialogue to be clearly understandable and to be filmed correctly to create a immersive effect.