“Southside With You” (*** out of four) was an absorbing story set in the summer of 1989 about the fateful first date between Barack (Parker Sawyers) and Michelle Obama (Tika Sumter) which took them through the Southside of Chicago as they discussed their upbringings and political idealism on how the country needed to be changed. One of two biographical films of Obama released last year (“Barry” was the other), this lacks the other film’s emotional heft and resonance but is still well-done and entertaining. Sawyers and Sumter are perfectly cast in the leads.