Complex sentence: She also floated around studios doing bit-parts; preferably Warner Bros. and Metro-Goldwyn-Mayer; aside from maids, she also specialized in playing blues singers, waitresses, tribal women, prostitutes, and hat check girls.
Split into simpler sentences: She also floated around studios doing bit-parts, usually at Warner Bros. or Metro-Goldwyn-Mayer. Aside from maids, she also specialized in playing blues singers, waitresses, tribal women, prostitutes, and hat check girls.