A few other things: There's a new, but really very similar, international poster here.
Boxoffice.com has added Neighbors to their long range forecast. They peg it at opening at $34 million with $126 million for cumulative. There is no tracking available for this movie yet, it is too soon. So they are basing it off of similar movies. I think the film has a lot of things going for it (some of which they address in their article), but I'd probably be more conservative at this point, just because there are many more days till we get to opening weekend (and hopefully Universal times the publicity just right and it doesn't peak too soon with all this early coverage). Also, it is always better to underestimate rather than underperform.
The LA premiere is scheduled for April 28 at 6:30pm at Regency Village in Westwood per seeing-stars.com.
ETA: Spike Interviews --- Can't embed so Meet the Neighbors & Who's a Worse Neighbor?