Originally Posted by Webfoot Hero
I think every MCU movie, save maybe IM1 (not sure on that one), was recorded in England. TA and Thor used the London Symphony Orchestra, CA: TFA was done in London's Air Studios, IM3 is using the London Philharmonic Orchestra, and IM2 recorded in London under Jon Debney.
was also recorded in the UK at Air Lyndhurst, with UK session musicians. The only Marvel Studios film that utilized U.S. musicians was The Incredible Hulk
using the Northwest Sinfonia, but even that was non-union.
As for The Avengers
and Captain America
, Silvestri definitely used most of the same musicians from the LSO to record the score. But some of them were contracted from other orchestras, like the London Philharmonic, Pro Arte, and Royal Philharmonic. That's why it's not credited as the LSO.