Want some candids and behind the scenes scoop from Carole’s film “Mr. and Mrs. Smith”? Happy to oblige.  Both from February 1941: Just for good luck Alfred Hitchcock always appears in one brief scene in his pictures. Just to show that he was a good sport he let Carole Lombard, the star of his picture “Mr. and Mrs. Smith” direct the scene in which he appeared. That was a big mistake, as he discovered later.  Miss Lombard, the director, sat in the director’s chair, neatly placed in the shade, and for half an hour or more made Mr. Hitchcock go through his one line. The sun became hotter and hotter on…