Revealing mistake: When Trevor is stabbed, we can see the knife isn't in him, it's just pressed against his shirt.
Pay it Forward (2000)
1 revealing mistake
Directed by: Mimi Leder
Starring: Kevin Spacey, Helen Hunt, Haley Joel Osment, Jay Mohr, James Caviezel, Jon Bon Jovi
Continuity mistake: Early in the movie after Haley Joel Osment befriends a bum they are sitting at the kitchen table and the bum pours Haley a bowl of Captain Crunch and fills it over the rim of the bowl. In the next wide shot the bowl of cereal is below the bowl's rim level as they pour milk into it.
Eugene: Jesus Arlene, he doesn't have to. All he has to do is not love him.
More questions & answers from Pay it Forward
Chosen answer: The one who stabbed him was not. The others were there because they did not mean for Trevor to get stabbed and killed so now they feel guilty. They were showing Arlene they were sorry.
They were sorry for killing him.
Only one of the bullies killed him. The others were bullying, but didn't think the other would kill him. However, they still had remorse and were showing that remorse to the mother.
The one who stabbed him was probably arrested offscreen.