Eliot Spitzer was not amused to find himself being filmed while eating lunch with “Sopranos” star Steven Van Zandt. They were deep in conversation over lunch at Morandi Friday when Spitzer spotted Jane Pratt, the founding editor of Jane magazine, shooting them with her iPhone. A spy reports, “We saw Spitzer staring at this lady and first we thought he was checking her out — but then it became clear he was scowling because she was filming him. She put the camera away and hurried to the bathroom.”