Sin City easily got the first spot this weekend with $29M. With great reviews, and an assured cult effect from master of the genre Roberto Rodriguez, the movie is likely to reach at least $75M, producing a small profit for its estimated $40M production budget (add to that advertizing and distribution costs of course).
Beauty Shop opened mid-week and only managed $13M over the weekend. Not a good indicator for the success of the movie.
Guess Who adds just under $13M in its second weekend. With $41M so far, the movie is pretty much assured to beat $50M and will be considered a small success.
Robots passed the $100Mmark, the second film after Hitch to have done so this year so far.
Miss Congeniality 2: Armed and Fabulous dropped severely in its second weekend and barely managed $8M.
Pacifier, The added another $6M and now sits at a little bit over $96M. It will become over the next 2 weeks the third film to hit $100M this year.