A Film By Linda Wertmuller Thcre are interesting films and uninteresting films. Lina Wertmuller's "Swept Away . . . by an unusual destiny in the blue sea of August" is an interesting cinematic story of two people trom opposite social classes-a male sliip laborer and a dominating teníale capitalist- who end up stranded together on the proverbial desert isle and fall passionately, lerribly in love. The rich lady. Raphaella, capably played by Mariangela Melato, loses her hard, domineering edge as her wealth and social power have no force in the primitive setting, and the crudo unlettered Gennarino (Giancarlo Giannini) assumes the traditional male-dominant role over the translormed bitch-servant ordinarily denied to one of his class. You could cali this a battleof-the-sexes film, with the rathei predictable out come managing to fulfill the "normar' male's fantasy of having complete control over a man in a one-on-one simal un VVertm ulier is a smooth director. In this film she slowly glides the viewer up lo a peak of shattering emotionalism midway through the film by way of her portrayal of the sado-macho love experienced by the two characters. Her direction is most elYective when she blends story with scenery: the sun's rays glim mering on a blue-grey sea, or the quiet sandy hills of the deserted island, upset now by the two lone battling, loving human beings. Somehow I kept imagining the movie converted inlo a Doris Day-Cary Grant comedysame story line, different tteatment-and how silly and pretentious it would be. Ms. Wertmuller's screenplay and steady direetorial hand take it into a whole other dimensión, making for an . entertaining tlick. Nothing really special, bul probably worth your time and money if you don't have anything better to do.