Not necessarily fluff, but I'd love to see Ten and Oppenheimer cross paths (and if I'm not mistaken, wasn't there some throw-away reference somewhere, about Nine and the Manhattan Project??).
Either way, it would be nifty as anything (and considering how many scientists and other support staff were involved, Nine could have easily been another science-y face in the crowd).
The Doctor's own attitude towards the Manhattan Project remained more nuanced. A number of his later incarnations expressed disapproval at the deployment of the atomic bombs
Oppie would approve a nuanced approach: he ended up having a mega-heck-ton of regret about the bombing of Japan and was dead set against hydrogen bombs.
However, with regard to the Manhattan Project itself, the Doctor seemed more accepting. The Seventh Doctor expressed revulsion for the fate of Hiroshima and the future nuclear proliferation, but he was nevertheless willing to assist the scientists with their calculations and root out groups seeking to interfere with the Project towards nefarious ends
Though there is an exchange in the Nolan movie (based on some actual math that someone in the project worked out) where there was some concern that the Trinity test could ignite the atmosphere.
Groves: They're saying there's a chance that when we push that button... we destroy the world. Oppenheimer: [dismissively] The chances are near zero. [Beat] Groves: [flabbergasted] Near zero? Oppenheimer: What do you want from theory alone? Groves: Zero, would be nice!
I'm tempted to canon review, though that means digging up someone's camera rip of the movie or waiting till it drops onto Prime Video or the DVD version drops.
Yeah, I was on the fence about going to the theater, however, since it's a Christopher Nolan film, I figured seeing it on the big screen was for the better, since he really knows how to frame a film for it.
...I almost opted to see it at the one IMAQX theatre in our area, except I heard there's been some strange things happening with the IMAX projectors while showing this particular film.
Oppenheimer: [dismissively] The chances are near zero.
[Beat]
Groves: [flabbergasted] Near zero?
Oppenheimer: What do you want from theory alone?
Groves: Zero, would be nice!