The movie industry isn't quite as bad because people don't listen to movie critics as much because movies are typically no more than 2 hours. Video games are a much larger time and typically monetary investment. By that same token it's easier to bullshit your way around a video game review because someone needs to invest a significant amount of time to call you out on the bullshit. So the incentive is greater in video games to make up shit for early review access and it's also easier to get away with it.
There have been instances where producers like Sony have been caught astroturfing and creating fake movie reviews however.