I think that S&S3 did an outstanding job of showing Marianne's and Brandon's growing feelings for each other, in a sense improving upon the very rushed, truncated ending of S&S2, but if I were to make changes to the scenes we have discussed in S&S2, without greatly altering the events themselves or adding new ones, then they might be as follows. In the poetry-reading scene, Marianne and Brandon might engage in a little flirtatious conversation about their favorite lines in the poem, or perhaps the meaning of the lines that they have just read. Marianne could show some of the passion and zest that she expressed so well in the earlier scenes of the film, and Brandon could actually express some excitement for once. Later, when Marianne is talking with Elinor, she could indicate in some way that she is beginning to feel differently about Brandon, mention some of the things that they have been talking about, and perhaps mention that Brandon is allowing her use of his library (the latter remark WAS in the original screenplay, but it appears that it was cut from the final film). When Marianne is learning the piece of music that Brandon gave her, she could show at least some excitement when her mother calls out that she thinks Brandon has arrived for a visit, instead of ignoring her and just continuing to play. Again, in the screenplay, Marianne does jump up with excitement at the mention of Brandon, but for some reason this isn't in the film.