It's not the worst videogame movie ever, but it's definitely going to come up in the conversation.
So that's bad, yeah, but just how bad is it? With help from Google and The Numbers' movie comparison feature, I can tell you this: It's really bad.
I present to you...
An Incomplete List of Shitty Videogame Movies That Made More Money Than Borderlands
(in no particular order)
Warcraft ($439 million)
Max Payne ($88 million)
Doom ($59 million)
Street Fighter ($99 million)
Assassin's Creed ($241 million)
Prince of Persia: The Sands of Time ($336 million)
Hitman ($99 million)
Mortal Kombat (but Mortal Kombat is actually good) ($122 million)
Need for Speed ($194 million)
Five Nights at Freddy's ($297 million)
Uncharted ($401 million)
One big-budget, big(ish)-cast Hollywood film Borderlands managed to beat, which I bring up only because I paid good money to see it in theaters and I'm still sore about the whole thing, is Wing Commander, an utterly execrable celluloid waste of time and effort that bumbled to $11.5 million globally. Frankly I'm surprised it did that well.
The Warcraft movie wasn't even bad, they just didn't go hard enough. It was impossible to cram that whole story into one movie. They shoulda done a Hobbit with it.
If they literally just made a trilogy of the wc3 campaigns they would've easily made decent cinema. While the arthas storyline is a little derivative (as most things blizzard makes) it is still the best epic saga they made to date, aside from perhaps the original StarCraft and broodwar shakespearean intrigue fiesta.
Honestly, if you don't know the game stories, it will be a confusing mess. They take very little time on the movie to explain what is happening and why.