Why would Showtime air the movie, "Agora" when it slanders and distorts Christianity & its history?

AGORA is a well-made attack on Christianity that falsely claims that Christians burned down the great ancient library in Alexandria in 391 A.D. to also falsely claim that Christian leaders back then opposed legitimate scientific inquiry about the natural world and the cosmos. In reality, Julius Caesar accidently burned down the library when he attacked Alexandria in about 48 B.C. It has an Anti-Christian worldview full of propaganda and blatant historical falsehoods mixed some historical truth, which depicts some historical Christian figures in the worst possible light but leaves a couple other real-life Christians alone