Lets just wait till the film releases and we’ve all seen it before we all judge it based on rumour and gossip.
Well we don't even know if all these rumors are true, but the cast does include characters from the first 2 games, which again, trying to combine the first 2 games, which are massive into a single storyline is a lot.
Especially considering you'd basically have to turn the first THREE games into a movie since 2&3 happen closer in relation to each other than 1&2.
But that still doesn't mean that all or some of the rumours and gossip are true, e.g. Wesker working for Ada