for John CassavetesTippi Hedren would be more nonplussed than me,or you—I can’t remember who is who—but she’s playing herself,hosting Dinner and a Movie…The Birds on cable, see?It’s the first time she’s worked in ages—who’d blame her?A chancelike Hitchcock affordedonly comes along once, sometimes,and who needs more than that to ruin a career?Not established like Stewart, or typecast like Perkins or Leigh,she can still be counted on for earnest.But sincere is no kind of disguise;it’s hard to know who’s on the level in this biz.You need to understand:everything that’s in our frameisn’t all we’re here for.A blood disease,has to do with sugar,