“I believe in tit for tat, and if that’s the case someone owes me a lot of tat.” That quote begins this fast-paced, extremely well-researched documentary about Sophie Tucker, the bawdy singer/comedian known for being “the last of the red-hot mamas.” And thanks to the producing-writing team of Lloyd and Sue Ecker, a new generation of fans will be giving Sophie lots of “tat,” just as their parents and grandparents did during her career which lasted seven decades from the 1890s thru the 1960s.