Well, for soundtracks, Hans Zimmer is a good example of legendary movie music. The Grey Soundtrack I find is awesome, especially with Alpha [link] Dark Knight Rises is a good one too [another by Hans Zimmer]. For Violins and Cellos, I'd look into the Piano Guys: [link] [link] [link]
And if some of you might know good youtube violin videos like '' Lindsey Stirling '' ?
Thank you