Unfortunately I don't remember much from the movie, since I saw only 30 minutes of it, but I remember few scenes. I will describe the movie as much as possible.
Film genre: Fantasy (most likely)
Year of release: Considering, I was not older than 12 at the time, it would be around 2000 to 2008.
Language: It was translated to Russian, but I heard some English words, because of bad dubbing.
Filmed in: I am 90% sure that was USA.
Protagonist: (15-18) year old guy, jeans jacket and longish hair. (I think darkish blonde).
Girl: (15-18) year old girl, who loved the protagonist, had a brother, and I think she was blonde.
Fat boy: (15-16) year old boy. I don't want to be rude, but that is only characteristic that I remember..
Dog: He was a white little dog. His master was the protagonist.
Before I start describing scenes from movie, I would like to say, that it was pretty unsafe for kids. Text that is Bolded is important to the story.
There were a pack of kids, who did pranks on people. (The protagonist of this movie was one of them). They made a prank on a women, by putting firecracker in the mailbox, and when the women opened it, the firecracker blew up, and killed her. (Kids were hiding behind big tree, 20 meters from mailbox).
Later in the movie, the hero tried to save the women three times.
First: By screaming, not to open it. (He failed)
Second: By sending his fat friend to disarm the firecracker. (His friend failed and died.)
Third: He tried to disarm it, but it blew up, killing the protagonist. (I think this was the ending).
Either after the fat kid, or women dying, the protagonist went to a high-security prison. There he was in cell with a black dude (who was reading some book). The protagonist asked him where his notebook was. After about a minute, the black dude asked the protagonist to show him his palms. On both of them, there were (some signs). The black dude said, "You are the chosen one", or something like that. The black guy, for reason I don't remember started to taunt other prison mates, who killed him in his cell.
- There was some scene where the blonde girl told her brother (crazy guy), that she had sex with the protagonist. In rage, the crazy guy proceeds to beat the protagonist and his sister to pulp. (This is an important moment).
When the protagonist went back to that moment of his life, he tried three things to change the situation.
Tried to beat the crazy guy (that failed). The crazy guy went nuts and killed the protagonist.
Told his fat friend, to kill the crazy guy from behind, when the protagonist would talk to the crazy guy. (The fat kid succeeded)
Tried to talk him out of killing him and his sister. (That ended up with, the crazy guy, putting the protagonist's dog into a potato bag, and putting it on fire.) That was the worst scene.
- After the fat guy, succeeded in killing the crazy guy, the protagonist appeared in a mental hospital, where he visited the fat kid (now, about 18-20 years old). The fat kid was lying on a bed where he was held by leather straps. (The fat guy was really angry at him.)
That is pretty much all I remember. I hope you guys will able to help me find it.