Originally Posted by
Alwek
I will try to answer those I can and know. Obviously spoilers are to follow so be careful for those who haven't seen it yet:
1 - I actually liked the twist with King Llane's death here in the movie. Yes, ingame/canon he's assassinated by Garona while she is cursed/mindcontrolled(?) just before the siege of Stormwind. Unfortunatly that is a common solution to explain why people did bad stuff or became evil ingame, so I do prefer the movie version more.
2 - In lore Anduin Lothar is a much older man who is the king's right hand man and a member of a Brotherhood, additionally being from the Arathi(?) bloodline. They possibly ignored the later two ones so that people not familiar with the Warcraft universe doesn't get too much confused about the identity of Lothar. And as Chris Metzen once explained in BlizzCon, Lothar was portrayed as "uncorruptable, one dimensional man loyal to his king" in lore. Making him roughly the same age as the king and have a family could make him more appealing to the audience and also expand his character.
3 - I could be wrong here, but Dalaran is introduced in Warcraft 3 and is stationed on the ground when we first see it. If the mages had the capabilities to lift an entire city after it's being rebuilt from WC3, I don't see any reasons against why they wouldn't have a floating city before too. Like, they could lift and land whenever they wanted to.
All the other points involving Durotan, Draka and Orgrim were added later into the story as they did not exist during the making of Warcraft 1.
I personally enjoyed the movie and the changes it did, I'm hoping for a sequal to continue the story and hopefully improve the errors they did with the movie when it comes to the pacing and introduction of the characters and locations.