Complex sentence: In April 1927, she appeared in "Packing Up", a short film produced in the DeForest Phonofilm sound-on-film process; the short featured Malcolm Keen and was directed by Miles Mander.
Split into simpler sentences: In April 1927, she appeared in "Packing Up", a short film produced in the DeForest Phonofilm sound-on-film process. The short featured Malcolm Keen and was directed by Miles Mander.