LM should get to $20M. Skyfall needs good drops to get to $50M but it's already passed $1B WW. Very successful for both of them. WIR and Hobbit did well. PG did better than expected.
http://www.boxoffice.com/statistics/bo_numbers/actual_estimate/2012-12-31Most were overestimated due to Sunday Night Football that generated more than 25 million viewers (the highest viewership for SNL since 1997).
LM doesn't face much direct competition in January (most of the new releases are R-rated). I'm thinking a 40% drop for its 2nd weekend and then stabilize throughout January.
Honestly, Les Mis is looking at a $30M+ weekend and possibly in the mid 30s if it drops less than expected. $150M total is what it will get but $200M isn't impossible as long as it gets nominated for best picture.
Not bad considering it faced immense competition. If it follows 2007 patterns of similar films with Oscar Buzz like Savages and Juno, it might get close to $4M in its 3-day portion. If this happens, not only it has a massive increase but also the PTA went up despite the count doubled. Good comeback even though the studio should've handled it a lot better.