Who said, "Pictures are the only business where you can sit out front and applaud yourself"?

Will Rogers said, “Pictures are the only business where you can sit out front and applaud yourself”.

Who said, “There are no second acts in American lives”? F. Scott Fitzgerald said, "There are no second acts in American lives".
Who said, “All I have I owe to advertising”? It was late 19th-century cold cereal developer C. W. Post, whose creations included Grape-Nuts who said, "All I have I owe to advertising".
Who coined the phrase “the shot heard round the world”? American poet and philosopher Ralph Waldo Emerson originated the phrase "the shot heard round the world" in his poem "Concord Hymn" (1836). The poem memorialized the Battle of Lexington and Concord of 1775,…
In how many films did Basil Rathbone play Sherlock Holmes? Basil Rathbone played Sherlock Holmes in fourteen films. The first was The Hound of the Baskervilles in 1939. The last was Dressed to Kill in 1946.
Who was the first on-screen Don Juan in a movie? The first on-screen Don Juan was John Barrymore in the 1926 movie Don Juan, the first movie to synchronize sound effects into a sound track.
How far can a kangaroo jump? Large kangaroos cover more than 30 feet with each jump. One large kangaroo was measured as clearing a pile of timber 10.5 feet high and 27 feet long.