Watched the trailer...BLECH!

As others have mentioned, the guy just doesn't seem like Peter Parker. And my wife and I both thought that he looks about 18 and MJ (Gwen?) looks about 30. They look awkward together...if the trailer can't make them look good together, then the movie will never pull it off.
I think I could have certainly accepted someone else playing the role if they hadn't done a damn origin story (seriously, considering we just had 2 good movies + one decent one that began with an origin story, this is just lame

) and if they didn't look like they were trying to be like every junk action movie out there. I get why hardcore Spidey fans will need to see it, but I'm happy enough with Spiderman 1-3 and frankly can't be bothered with this.
Tim Burton did a great job with the Batman films, but he pits batman against th joker in the very first film and kills him. It can only be downhill from there.
I hesitate to call those great as I thought the tone and style were wrong, though the acting and production values somewhat made up for it. I do agree though that killing off the villain is bad...though in this case I doubt Jack Nicholson would have come back for a sequel anyway, or at least would have wanted a crapload of money (I think his salary for Batman was huge).
I actually thought the Batman reboot was ok, since I didn't think either Tim Burton movie felt quite right, and Batman Forever + Batman and Robin were garbage. But in the case of Spiderman, the first 2 movies were great, and the third was at least acceptable. A reboot just seems silly if not outright stupid, and just helps confirm for me that mainstream Hollywood movies are really going down the crapper.
I'm glad you guys are having fun with this. Last time I got excited about a superhero movie was 1980. 

That is my favorite superhero movie ever.

It's a bit cheesy/corny in parts, but for that movie, it seems to work.