Where can I find sheet music to these songs?

I would like sheet music for "I'll Be" by Edwin Mcain and "Pieces" by Red. I preferably want it for violin (I don't even know if that makes a difference or anything but whatever haha). I have been trying to find the version of "I'll Be" from the movie A Cinderella Story (the part where they are dancing under the gazebo) but I cannot find it anywhere. That version is beautiful and I would love to have sheet music for it. Thank you.