Her Last Affaire is a 1935 British drama film directed by Michael Powell and starring Hugh Williams, Viola Keats, Cecil Parker and Googie Withers. The wife of a politician is found dead at a country inn. It was based on the play "S.O.S." by Walter Ellis.

Can we draw the following conclusion?
Michael Powell saw the play "S.O.S." by Walter Ellis.
It's impossible to say