What movie is the bomb on a train in?

Okay, so, you're asking about the movie with the bomb on a train, right? It's Source Code. Ever seen it? It's pretty intense! Basically, this guy, Captain Colter Stevens, he's...well, it's kind of hard to explain. He gets put into this, like, simulated reality thing of a train that's going to explode. A bomb on a commuter train, can you imagine? The horror. Anyway, his whole mission is to figure out who the bomber is before, boom, it all goes up. And it's not just about saving those people on the train – there's a much bigger threat, like, a nuclear attack on the city. Talk about pressure! It's kind of like Groundhog Day meets, I don't know, a thriller or something. He keeps reliving the same eight minutes, trying to piece it all together. It's definitely got some twists and turns. I remember watching it with my friend, Sarah, and we were both on the edge of our seats. Definitely worth checking out if you haven't seen it!