The following is a guest post from Onlocationvacations.com.

Mad Men star (and Liz Lemon’s latest love interest) Jon Hamm has joined the cast of Howl. The film chronicles the obscenity trial that ensued after the publication of Allen Ginsberg’s 1956 epic poem of the same name. Hamm is set to play defense attorney Jake Ehrlich who represented the poem’s publisher, City Lights Books, and eventually won the trial. Ehrilich was also the inspiration for the TV series Perry Mason. Hamm is joining an already impressive cast. Ginsberg is being played by James Franco, while Mary-Louise Parker, Jeff Daniels, David Strathairn, Treat Williams, Bob Balaban and Alessandro Nivola are also attached the to project.

Howl has been filming around New York City for nearly three weeks and there have already been quite a few sightings of Franco in character as Ginsberg. Locations thus far have included the upper east side of Manhattan and various locations throughout the Bronx. This week, they are filming at the Bronx Supreme Court, 851 Grand Concourse, Bronx, NY, all week. There is no word on who will be filming at this location but it is safe to assume since Hamm is playing an attorney, he will probably show up in the courthouse scenes. For more breaking news about where movies and TV shows are filming, check out Onlocationvacations.com.