Complex sentence: George Grosz' Interregnum is a 29-minute long documentary film about the artist George Grosz produced by Altina Carey and Charles Carey, and narrated by Lotte Lenya.
Split into simpler sentences: George Grosz' Inerregnum is a 29-minute long documentary film about the artist George Grosz. It was produced by Altina Carey and Charles Carey and narrated by Lotte Lenya.