PAVILION, SELSEY. Another outstanding British picture comes along to prove that Hollywood is no longer the sole purveyor of really fine entertainment in the British Lion release of "THE SHOP AT SLY CORNER," George King production based on the long running stage success by Edward Percy. The film comes to the Pavilion on Monday. Oscar Homolka, Derek Farr, Muriel Pavlow, Manning Whiley, Kathleen Harrison and Kenneth Griffith are among those with leading roles, though the large cast contains other equally well-known "names" of British stage and screen. Little short of a personal triumph for Mr. Homolka, whose brilliant technique has seldom been seen to better advantage, the picture is a skilfully woven tale of blackmail and murder. It's one of those in which to divulge the ending is to spoil the entertainment, so suffice it to say that the story builds up to a tremendous climax which will surely have you gripping the edge of your seat. Walt Disney's brilliant musical drama "SONG OF THE SOUTH" comes on Thursday. James Baskett is featured as Uncle Remus, with Luana Patter, Bobby Driscoll and the little negro boy, Glenn Leedy, playing other featured roles. Cartoon characters include the lovable Brer Rabbit, with his old enemies, Brer Fox and Brer Bear.