Okay here goes for my little tweaks to the series I would have liked to have seen:
Dr. No -- If only they'd filmed the obstacle course and giant squid encounter. Also, I wish they would have waited to make the "blind" assassins' car explode until it was fully down the hill and not midway. They exploded it way too early in the film. I wish they had originally had M say MI6 in his briefing with Bond. It sounds silly/stupid with how it is currently said dubbed over what sounds like MI7. How could they have originally messed that up? Bond always worked with MI6.
From Russia With Love -- If only Bond would not have slapped Tatiana. Seemed a bit heavy-handed there (no pun intended). Also, every time I see Bond trap Rhoda's arm with the truck hood and pull his head back, I keep wanting him to slam it onto the hood to knock him out instead of just punching him. And I wish the filmmakers would have been able to keep all the "risque" stuff they'd filmed instead of having to cut it out for the sensors (i.e. Bond's talk with Grant and Bond's conversation with Tatiana on the Venice canal). The stuff they had to eliminate sounds like it was really good and would have really added to the film.
Goldfinger -- If only they would have remembered to replace the Aston Martin's sun visor for the close-up profile shots of Sean Connery. Ever since that was pointed out to me I can't help but notice their absence whenever I watch the film. I also wish they would have originally had Bond say "A few" instead of having to dub it over the word "Three" after having stopped the atomic bomb. It was clever of them to have the bomb stop on the number 007, however.
Thunderball -- If only the stuntman would have agreed to film the jetpack scene without a helmet. Bond would have looked so cool without the silly helmet. I wish the filmmakers would have remembered what Felix was wearing when he and Bond discovered the Vulcan. His pants/shorts change about every shot. There's also two different Thunderball versions out there with minor differences. My "perfect" Thunderball version would a mix from both--specifically these options: 1) Bond telling the shark "Now you can tell them about the one who got away." 2) Upon spotting a manta ray, Leiter mentions how rare it is to see one this far out to sea. 3) When Bond battles a SPECTRE frogman in the underwater cave, the "Chateau Flight" music is played. 4) As Largo is about to torture Domino, he says these words: "You've given me much pleasure Domino. IN return, unless you tell me how much Bond KNEW, I'll be forced to cause you GREAT pain." (The preferred version's difference is in CAPS) 5) During the underwater battle with the aquaparras and frogmen, the music is smooth and doesn't jump. 6) As Largo enters the Disco Volante from underneath as he tries to get away, there's a dramatic sound effect of the hatch closing. 7) As Largo reaches the Disco Volante bridge he says: "Come on, I'll take over. We've got away from them. We've still got one bomb aboard." (This line makes the most sense) 8) Kutze tells Domino that the bomb can't explode because he threw the arming device into the sea and she tells him she understands. 9) The end of the film concludes with Bond and Domino whisked away by plane to the strains of a Thunderball orchestration of the James Bond Theme.
You Only Live Twice -- If only Diamonds Are Forever would have been filmed in 1967 with the Spang brothers as the villains and putting YOLT after OHMSS where it is supposed to be and with George Lazenby returning for his second and last time as 007. As YOLT stands now, I wish Connery had put more effort into the role than he did as his charisma and enjoyment for Bond doesn't match anywhere near his previous efforts. I wish Bond would have sucker punched Hans first rather than the other way around. And while I like Donald Pleasence, I think a more intimidating Blofeld would have been better such as casting someone like Yul Brynner, Max von Sydow, Marlon Brando, or Laurence Olivier.
On Her Majesty's Secret Service -- If only they would not have dubbed George Lazenby during the Hilary Bray scenes. I also wish Switzerland would have had more snow during filming so the avalanche scene would have been even more spectacular. I also wish the costume designer had given Tracy a more beautiful and glamorous wedding dress. What we ended up with was a horrible see-through flower power hippie pantsuit. Yuck. It's got to be one of the worst, if not THE worst Bond girl outfit of the entire series.
Diamonds Are Forever -- As I said earlier, Diamonds and Twice should have been switched. That said, if only the filmmakers would have kept Plenty's scene returning to Bond's hotel room to get her clothes and discover Tiffany's address. It makes so much more sense to include it than to omit it as in the finished film. I also wish the filmmakers would have either remembered which two wheels Bond tilted onto in Las Vegas when they did the re-shoot of the Mustang leaving the alley or had just kept the original shot in the film. (All things considered I don't think the people watching the filming were all that distracting.) Bond should have gotten pissed off upon learning that he hadn't killed Blofeld at the beginning of the film. (I have no problem with his attitude in the PTS, but there's no anger at all from him upon Blofeld's reveal clear until the end of the picture, which is a big mistake. The anger and determination he had in the PTS should have returned.) I wish the filmmakers wouldn't have repeated themselves during the diamond smuggling pipeline narration. Couldn't they have lengthened the speech or taken out a few shots? I wish Tiffany's character wouldn't have changed over the course of the film. She starts out good but upon reaching the oil rig, she loses her street smarts and some of her appeal. I also would have liked to have seen the bathosub's door to have been open or ajar when we last see it, leaving open the possibility that Blofeld got out. As it stands now, you're not sure what happened to him, and if he had died, it would have been a stupid way to be killed and certainly not the proper ending for Blofeld/Bond's wife's murderer. Better that we know Blofeld escaped to fight Bond another day as in YOLT.
I'll stop there. I'll give my what ifs for the rest of the series later.