I think there are just too many things to explore in a Wolverine genesis movie. Do you go back to his days with Captain America fighting Red Skull (pre-adamantium)? Do you start it from his time as a Canadian special ops weapon just post adamantium? Given that he is the most conflicted of the X-men and the most likely to snap at any given moment, I think an exploration as to why that would be, and just where he actually comes from and HOW OLD IS HE REALLY would be good things to show.
As to the movies being bad for comics, I really think it's a matter of how well they do the movies. Are they doing the movies to bring interest in comic books or are they taking the stories they are telling to a new medium and leveraging their properties to make money? I think Marvel has shown in the past that, while they are concerned with their fans and making a good story, they are a company - they are for profit, and they will do what they need to do to make the big bucks.