Wanna play a game? First person to name the movies first wins Best Answer!?

Okay so I will give you a hint for 3 movies. The 1st person to get all three right wins! I will add more hints every so often! Ready, Set, Start thinking!

1st) A boy is under house arrest after hitting his teacher...

2nd) A excellent high school swimmer goes to be a Coast Guard...

3rd) A bomb is on a bus...

Good Luck! =)
Okay! So my next one will be hard!!! I knew this one was pretty easy! You all got them all right! Well, except not a guardian but the guardian. Thanks for playing!!! =)