I know another person who really,
really collects one particular character, and they watch, read, and listen to everything that is put out about that character, even when it directly conflicts with their view of the character.
If
ThatNickGuy is anything like this person then he will be unable to avoid this, whether it's a train wreck or not. He'll have to watch it at some point, no matter how bad or wrong it is. And if you're going to put yourself through that, might as well take the chance of seeing it in the theater, alone (ie, no friends or family - just experience it without any outside influence), and then walk away knowing whether it was bad or not. Being able to dismiss it and get past it is easier than sitting there in a state of limbo, never really knowing for yourself whether it's as bad as it seems.
Of course you also have to realize that it's now forever tainted by what you've been told. You can never go into it with a clean slate and open mind, so it probably doesn't matter whether it's good or not - to nick it'll be bad no matter what.
But he'll
know.
And that, as we all know, is half the battle.