The first scene...
Here's a recommendation, which I think makes the movie much better and much more emotional when you get to the climax at the end of the movie.
Skip the first scene.
The first time I saw this movie I missed the first scene, which after seeing the entire movie, I think gives away the emotional climax of the story. Skipping the first scene makes Pip's secret and an actual secret, so that you're at the same place as everyone else Pip interacts with, and just as shocked by the revelation of the secret.
I love this move, but this makes the movie much more powerful. When I saw the movie again from the start, it was immediately obvious that the first scene gives away Pip's entire story. It gives you the climax before you have a chance to build an attachment to the character and makes you prejudge him.
So if you haven't seen the movie yet, but are planning to, skip the first scene. You can always come back to it later, although really, the almost exact same scene shows up again during the climax, so your not really missing anything.