Mr. Blue/WENN.com

All thumbs up for Jon Hamm who checked out the NY Screening of new comedy ‘The Campaign‘ starring Will Ferrell and Zach Galifianakis at the Landmark Sunshine Cinema Wednesday night.

The ‘Mad Men’ star arriving solo minus his long term girlfriend Jennifer Westfeldt, must have missed the memo of the hot evening temperature or was a bit chilly and sported what looks like a leather jacket no less in long sleeves.

Others in summer attire included Susan Sarandon, Rachel Dratch and Nicole Trunfio, as well as Andy Cohen, Rachel Roy, and Brook Shields hubby Chris Henchy.