Recently read a little on the movie production. Many of the ME-109s were a Spanish version with Merlin engines. THey modified the aircraft to more closely resemble to German originals. The producers collected as many of the flyable Spits and Hurcs as they could. They were only able to come up with two Spit Mk I and IIs that were the same model used in the battle. Some aircraft were only capable of taxiing in the movie. Others were restored to flying condition just ot be used in the movie's aerial footage. It was a huge production effort. Also a favorite of mine.
Interestingly, all of the Jap(anese) acft in Tora, Tora, Tora, made the following yr, were modified American T-6 trainers. Some still used in aerial demonstrations today. Chirs