Question:  Conquest is a 1937 Metro-Goldwyn-Mayer film staring a British character actor for his many roles in British and American films and later in what?
Sentence (from "Conquest (1937 film)"): It stars Greta Garbo, Charles Boyer, Reginald Owen, Alan Marshal, Henry Stephenson, Leif Erickson, Dame May Whitty, George Zucco, and Maria Ouspenskaya.
Relevant evidence: Yes