I know better to argue with Isa, but may I point out that Urdu is an Indo-European language used mostly in Pakistan.
Back to the "movie," it is certainly possible that it may have been produced by Pakistanis, with Saudi financing and under the aegis of the ISI. BTW, I had never heard Turks call the Conqueror anything by Fatih Sultan Mehmet, not Sultan Muhammad Fateh.
Regarding the Turks of that era, there are many facts that apply to them. First, they were indeed welcomed in some Bulgarian and Greek areas with bread and salt. Second, they were very practical and much less cruel to their subjects than many others. Third, they were related by blood to the ruling family of Constantinople as well as other Christian ruling families. Third, every body coveted Constantinople, which was the greatest and richest city in the world for centuries: Arabs, Latins, and Bulgarians come to mind. BTW, the Bulgarians had stopped a large Arab force early in the 8th Century because if anybody would take Tsarigrad--the City of the Caesar, it would have to be themselves!. Fourth, for at least 200 years, the Sultan promoted folks based on their intellect and merits, hereby benefiting his Christian subjects, mainly the more educated and cosmopolitan Greeks. Incidentally, Mehmet II personally vested Patriarch Gennadius shortly after taking over the city: "On 1 June 1453, just three days after the fall of the city, the new Patriarch's procession passed through the streets where Mehmed received Gennadius graciously and himself invested him with the signs of his office – the crosier (dikanikion) and mantle." Wiki at http://en.wikipedia.org/wiki/Gennadius_Scholarius#Patriarch
. Fifth, rape and pillage has been standard reward for the victorious armies for centuries.
That said, the movie is indeed garbage; for all her faults, Byzantium did not deserve to be conquered and rescued from her own "decadence." Also, the Turks degenerated after Suleiman the Magnificent and their rule became very cruel indeed after him.