THIS behind-the-scenes HARRY HAMLIN tale takes the cake! The former L.A. Law star, now 68, tells how he got caught on a spycam talking smack behind STEVEN SPIELBERG’s back — and it cost him the role of Indiana Jones in Raiders of the Lost Ark! In what must be one of wackiest auditions in Hollywood history, Harry says he was secretly taped by the director in 1978 while vying for the coveted part, which went, of course, to HARRISON FORD.
Partnered with actress STEPHANIE ZIMBALIST, Harry was asked by Steven to bake a chocolate cake in the office kitchen. “He closed the door and left, and we were standing alone in this kitchen,” recalls the actor. Then, during a 40-minute bake-off with no instructions, Harry blew it — he spilled…