He wore a leather jacket, green top and khaki pants.
He rocked a neck tattoo, some scruff and even (gasp! The comedy also stars Lily James, Jon Bernthal, Kevin Spacey, Jamie Foxx, Ansel Elgort and Liam Hemsworth's former fling, Eiza González. Hamm — who split from longtime girlfriend Jennifer Westfeldt last year after 18 years together — has been busy since Mad Men wrapped its final seventh season.
The “Mad Men” star reportedly needed some space from the notoriously controlling girlfriend.
Hamm completed a 30 day treatment for alcohol abuse back in March and apparently life without alcohol also meant life without Jennifer.
PHOTOS: Recent celeb splits "They've been fighting for a while, but now they're done,” a source close to Westfeldt tells Us. It's sad." Back in April, the couple slammed reports that they’d split prior to Hamm’s recent stint in rehab for alcohol addiction.
PHOTOS: Longest celeb engagements "The story that appeared in this week's edition ofmagazine is not true," the Mad Men actor's rep told Us at the time.
The longtime partners had been dating since 1997 when they met at the party of a mutual friend.The actor, 44, sported a bruised nose and a disheveled look — all to get into character for his new film Baby Driver, which filmed in Atlanta on Wednesday, February 24.The hunk was photographed dressed in character while speaking with some of the film's crew members."The only gentleman Jennifer visited regularly in Connecticut was Jon, while he was in rehab.They continue to ask for the public's understanding and sensitivity during this challenging time." PHOTOS: Stars who have been to rehab The pair last attended a public event together in January 2015, when they went to the Broadway show in NYC and posed with the cast.