Its kinda hard to pin point it, and i wouldn't say it was pin pointed.
Basically all the things that happen in the X-men movies did NOT happen in the comics.
Alice is only in the Resident Evil books based off of the movies. So yes.
Yes, each of the original books have movies based off of them. There are also spin off movies being made, like Fantastic Beasts and Where To Find Them.
No.
I can tell you that the Lion King is based off of Hamlet.
There actually is no book based on the Saw movies, and the Saw franchise was not based off of a book.
Resident Evil is a video game series. No games are based off the movies.
Yes, he is often inspired by his nightmares.
No, the Godfather movies are fictional. The Corleone family was based off the real-life Gambino crime family.
The alien is based off of a painting by H.R. Giger called Necronom IV. The figure in the painting most closely resembles a human.
Maximum Overdrive
Minecraft for the Xbox is based off of 1.6.6 of the PC version. Villages and villagers came to minecraft in 1.8 and 1.0.0 respectively.
Because they're based off the Spyro movies, wich are pretty dramatic.