Tried watching this last night. The wife left at the 25-minute mark and I quit after 35.
This had me squirming. Not so much that it was violent or anything like that, I just found it so incomprehensible that I wanted to strangle everyone in it. I couldn't accept that Joseph Gordon Levitt would be allowed to move in and pretty much takeover. I don't care how out of it dad was, that dude would have been thrown out on his rear if anyone attempted what he did at my place. JGL was such a crude, offensive, deadbeat, that it turned me off. If he were a supporting character and not the lead I may have hung in there, as it was, I couldn't put up with him.
The dorky looking kid with a hot Mustang? No.
What possessed Natalie Portman to act in this is beyond me.