Um, haven't read every post here so don't know how we got from Eragon to Superman, but I took my kids and several of their friends to the movie this afternoon. (possible spoilers below, but there have been spoilers in some of the other posts)
My 11-year-old (who has read the books and a WIDE collection of other books): "It was fun but I don't know how they are going to have an Eldest movie, they didn't even introduce some characters from Eragon (the book) that are important in Eldest."
His 12-year old friend (who hasn't read the book): "Those effects were SO COOL. Except the 'shade dude' he was, like, puppetman on a smokey bat thing, it looked stupid..." He liked the movie and had a good time
That boy's older brother started falling asleep during the last 20 minutes (when there was actually MORE action). His older brother has a few problems though and I think this just wasn't his type of thing.
My 7-year-old enjoyed the movie, however, he finished reading the book this morning and was able to start describing all the differences between the book and the movie. this resulted in him trying to get his older brother to tell him which characters were imporatant in Eldest (the second book) which he just started reading. It was nice, as a parent, to note that my older son simply refused and stopped talking about missing characters so as not to "ruin" the second book for his brother.
His 8-year-old friend just plain had a great time at the movie and really, REALLY liked it.
My 4-year-old daughter decided that she didn't like it and wanted to go home, after the first 20 minutes.
Yes, I took 6 kids to the see Eragon and watched the last hour and a half with a cranky 4-year-old (who likes LOTR-don't ask me, probably because her brothers do) in my lap.
Oh, my opinion? Not a very faithful adaptation of the book (I haven't read the second book but suspect my 11 year-old knows what he is talking about above). I think that younger boys of the ages 6-13 will enjoy the movie (and some girls). Overall, the movie felt lacking to me. I think the script and direction were pretty poor. Ofcourse, certain actors do turn in good performances, but really, they didn't have much to work with.
Patrick