I have read all of the books in Jay Bell's "Seasons" series. Because of this, I was really looking forward to this movie. In full disclosure, this is probably why I was so disappointed. A few things: First, Something Like Summer the book was absolutely amazing. However, the film left out so much and I can't help but think that, in part, this was because so much time was spent on the musical aspect of the film. The music was trite, boring, and awkward. It also seemed like it just showed up out of nowhere (e.g., "gee, I don't know how to end this scene, so let's throw in a poorly written and performed song about gay teenage angst).
Second, the characters, costumes and scenery all seemed fake. The whole ambiance of the film seemed like a white upper-middle-class version of gayness rooted in stereotypes.
Finally, I was not pleased with the character of Ben. You know how when you read a book you create an image of the character in your head? Well, whoever played Ben was not it. Of course, the fact that Ben kept breaking into song didn't help anything.
Though not pleased with Ben, the depiction of Tim was spot on :)
I will end with this: if you are a fan of the book, watch the film. However, be prepared for less emotional attachment, excitement, and satisfaction.