The characters, the casting, the action beats and most especially the dialogue are all telling us that this will be a predictable action comedy.
I disagree that the characters suggest that this will be a predictable action comedy.
The party consists of : a bard, paladin, sorcerer, druid and barbarian.
No rogues, no wizards, no fighters, no clerics, the classes that almost always appear as part of the party in D&D-inspired fantasy movies.
The bard isn’t stupid comic relief, he appears to be the party leader.
The barbarian isn’t a monosyllabic idiot, but appears to be the second in command.
The “dumb” character role seems to have been given to the arcane caster, which is also not very common.
A bit early to say, but it doesn’t seem like the white main character ends up with the cute druid who is 20 years younger than he is.
Hugh Grant’s character seems to be the main antagonist, and he seems to be a rogue, rather than a wizard or a fighter.