With the nearly $5-billion acquisition of Metro-Goldwyn-Mayer Inc. by a Sony Corp.-led investment group now final, the lion's roar is being reduced to a meow. Already, the job cuts started Monday, when about 185 executives received pink slips. MGM's staff of nearly 1,500 is expected to shrink in the coming months to around 200. Claudia Eller reports in the Los Angeles Times.