i think the best beginning for the movies(cause they surely r not gonna make only one(resident evil
)) is to show how dante became a devil hunter by showing parts of his childhood n eva's death(sparda is not necesary).then they can use the story of the novels(i havent read them but from what ive heard they r very good).that way,if the movie is good,more people will want to play the games(as the movie will be the prequel of all),there will be a good start for the next films n we(the fans) will see dante as a child.that way we r gonna see vergil(gilver) too.
the next film can be a random story(like the anime) that haves a connection to the games but it is not desperetaly hangin by them.it can be the connection between 4 n 2 somehow.for the other characters, like lady n trish, there is no need to explain their backstory just to make them appear "smoothly"(we already know their story n the viewers wont really care about them).
for a third one... lets see the first firtly n then we'll discuss for others.
oh n hire Christopher Nolan for director
“Until now, we knew that Greeks were fighting like heroes; from now on we shall say that the heroes fight like Greeks.”
Winston Churchill, Prime Minister of Britain - 1940.
“If the Greeks had not resisted and had given in to the Italians, then the chain of events that led to the ultimate downfall of the Axis powers would have been radically different”.
Nuremburg Trials - 1945