JarodRussell said:
Abrams might have said "I want this movie to be bright, almost blinding you, because it's a bright future", and his DoP could have said "We could use lens flares to get that effect", to which Abrams responded: "Yeah, let's do that."
Abrams is on record taking credit for the lense flares, because he wanted to visually convey the brighter future of
Star Trek. Since he's publicly taken credit, it's his responsibility. Personally, I didn't have a problem with the lense flares at either viewing, but that's just me.
When it comes to the visual look of the film, the director in the very least is the one who decides
where to place the camera and
how it will move. A more experiened director can also dictate camera lenses and even lighting, although those will most likely be chosen by the Director of Photography (with the director's final approval). However, you are obviously going to have a much better looking film when John A. Alonzo is your Director of Photography (
Star Trek: Generations; his experience includes the Oscar nominated photography of
Chinatown) than Matthew F. Leonetti
(Star Trek: First Contact). While Leonetti, I think, rose to the challenge photographing the two Trek films he was involved with, his training was in television. Finally, to correct an error in this thread, Alonzo was not involved with the photography of
Star Trek V: The Final Frontier.
It would be like blaming the director for the soundtrack. Of course he has influence on the music, but he usually doesn't do it. Oh, I already said that before.
Some of the blame concerning the film's score has to fall with the director. He or she likely hired the composer, or in the very least had a significant say in the decision. The director is also responsible for sitting with the composer during spotting sessions in which it is decided which scenes will be scored and which won't. A director may also indicate specifics, depending on how involved she or he would like to be. Consider Nicholas Meyer, for example. He was bound by financial constraints when he chose a composer (which left Goldsmith, who worked on the previous film, out of play), but it was his decision (based on
Battle Beyond the Stars) to pick James Horner to score the film.
I should also confess that, although I hold a bachelor's degree in cinema and photography, my primary area of expertise is in sound recording and sound design. Though I wish to go into film studies at the graduate level, that hasn't happened yet, and I only have the experience of three classes at the undergraduate level. In short, I know quite a bit, but I'm no expert.