If they took out an hour of this movie it would have been much better. There was way too much filler and plot holes. I like me some Transformers but this movie would have been better as cartoon as part of the series. There was much I enjoyed, but then again the cons just brought it down.
As we all know by now the lovely Megan Fox is gone -- that's what you get or calling your boss Hitler, particularly when his boss is Jewish -- and she is replaced by the equally gorgeous Rosie Huntington-Whiteley. I'm kind of glad they did away with Fox's character as she was never in the series. HW's character Carly was however an integral part of the original cartoon, going so far as to mother Sam's child, Daniel. Patrick Dempsey's character was a nice addition to the dynamic of the story. His backstory about his father's Faustian pact with Soundwave, did add a lot to the mythology. Again this was something seen in the cartoon, but it never bods well for the human when striking a bargain with the Decepticons. There was a little more leniency here, which is surprising considering how Megatron feels about humans, I'm amazed he wasn't killed off sooner.
Can someone please tell me what the point of John Malkovich's character was? He really had no real purpose for the movie, and he's gone with no explanation half-way through. The movie could have worked without him -- there I cut the film down by 10 minutes -- and I wonder if he added as a favour.
I'm sorry I need a timeline for the events that occur in the movie, because I'm confused as hell. It seems that times and dates overlap, and continuity is skewed. Which brings up the point, wasn't the Matrix of Leadership destroyed in "Revenge of the Fallen"? I seem to remember it was turn to ash. I'm glad it's back as it gives me hope that Rodimus Prime still has potential for appearing. On that note wasn't Optimus revealed to be a descendant of the original Primes? So what's up with all this passing of the Matrix stuff from robot to robot? Speaking of Primes...
Sentinel Prime, interesting character, and I love the addition of Leonard Nemoy's voice. It is interesting that he voiced this character as in the original cartoon he was the voice of Galvatron (Megaton's evolved form). Now this is where I get annoyed, did they really have to squeeze in some Spock into this character/movie. Earlier in the movie two Autobots were watching Star Trek with, you guessed it, a scene featuring Spock. To add insult to injury Sentinel even says "the needs of the many outweigh those of the few". A classic Spock line. Guys you're killing me here.
Boy did they mess up Shockwave. In the cartoon you never saw a hint of emotion, only the flashing light when he spoke. That's what made him terrifying. This movie did leave that in, but his body language, and tentacles are a big tip-off to what he's thinking and about to do. He wasn't as scary. More important question where was he in the first two movies? There was not explanation to his sudden appearance. He was the Decepticon guardian of Cybertron in the cartoon, and they definitely could have used that in this movie.
As for the others well I really had no real beef with their characters. It would have been nice to have seen Sentinel call Optimus by his not Prime name, Opus Dax. Soundwave would have been less confusing if he stopped changing forms all the time, but since he was a cassette player in the initial series giving him a modern look is hard.
So there I said all I need to say about this movie. I still want to see the DINOBOTS, and I know there's a lot of people that feel the same way. All in due time I suppose.