Ryan B. Jacobson doesn’t just practice entertainment law — he entertains.Jacobson, a partner at SmithAmundsen LLC, has acted in two independent films since taking five improvisational comedy classes and one acting class at The Second City Training Center.“At some point, you need to let your hair down and act a little goofy and remember you’re a human being or a parent and not just a guy that goes to work every day in a suit and pocket square,” Jacobson said.He’s been practicing …