The 1911 play, Disraeli, by Louis N. Parker, was adapted into the 1929 film of the same name.

The film was directed by Alfred E. Green and starred George Arliss as British Prime Minister Benjamin Disraeli. His performance won him the Academy Award for Best Actor in a Leading Role. The story revolves around the British plan to buy the Suez Canal and the efforts of two spies to stop it.

There is no entry about the play available on Wikipedia at this time, but here is a link to the film entry.