Neil Simon isn't really at his best with this rather hit or miss telling of four families who happen to stay at the world famous Beverly Hills Hotel. The divorced "Warren" family - Jane Fonda & Alan Alda are squabbling over the future of their teenage daughter. She has custody but the youngster wants to spend more time with her father and that's causing no end of self doubt and frustration with her mother. "Marvin" (Walter Matthau) comes on a day ahead of his wife "Millie" (Elaine May) and manages to find himself with an hooker who has no idea when it's a good time to wake up and leave.…