Wendy Claggett, age 17, of El Paso, Tex., for her question:

HOW MANY FILMS DID MACK SENNETT MAKE?

Mack Sennett was a pioneer motion picture director and producer who became famous for his slapstick silent comedies. You can occasionally see his wonderful old movies on television or on the screen in special museum showings. Sennett directed about 1,000 films.

Sennett's real name was Michael Sinnott. He was born in 1884