8. Orlando Bloom - The Pirates Of The Caribbean: The Curse Of The Black Pearl
Ah, Orlando Bloom. While his stilted delivery was just about fitting in the setting of the aforementioned Lord Of The Rings films, it comes off as plainly wooden in the more realistic world and context of Pirates. It probably doesn't help that he's performing opposite the electrifying Johnny Depp, but his delivery and general acting falls by the wayside and looks remarkably pale in comparison to the other lead. Special mention to Keira Knightley here too, as she was pretty shocking.