My memory must be playing tricks on me. In the Goblet of Fire film, I distinctly recall Wormtail killing Cedric. However, I also recall that very film claiming that "Cedric Diggory was murdered by Voldemort" (Dumbledore) and I remember a scene in the next film where Harry says something like "Cedric was good, but Voldemort was better" to Chou Chang.
This then gives me my questions:
- In the films, did Voldemort kill Cedric?
- If Voldemort did not kill Cedric in the films, why does the dialogue act as if he did?
- Were things different in the books?