The problem the studio has is that their solution to two actors disliking each other is

The problem the studio has is that their solution to two actors disliking each other is not to remind them they are getting paid a ton of money to act nice to each other, but that they forced the other actors in the movie to essentially choose sides which just makes everything worse.

Vin Diesel
Dwayne Johnson

Source: http://www.crazydaysandnights.net