"Water can flow, and it can crash. Be like water, my friend." That was one of Bruce Lee's principles of combat, and it's the inspiration behind "The Nature of Water," an exhibit that opens Saturday at Nucleus ( 458-7477), the sleek gallery in downtown Alhambra. Four dozen artists channel the singular legacy of Lee, who died nearly 35 years ago at age 32. Daughter Shannon Lee will be at the opening, which includes a Bruce Lee look-alike contest. Sounds cheesy -- though I might change my mind if the winner can do push-ups on his thumbs the way Shannon's dad used to. . . . Building on a Lee theme, Tuesday is the start of "Under the Influence: A Tribute to Stan Lee," an exhibit of 100 artists dedicated to "The Man Who Made Marvel." Lee, who just turned 85, will be on hand for the opening, which is a joint production between Gallery 1988 ( 937-7088) and its neighbor, Golden Apple Comics. If you go, please ask Lee a question for me: Why does his Norse hero Thor talk like a bad Shakespearean actor? Shouldn't he sound like the Swedish Chef? . . . Our date in L.A. history this week: Warner Bros. showed the first color newsreel 60 years ago this Saturday with a feature on the Tournament of Roses Parade and the Rose Bowl game. To mark the memory, let's stop and smell the flowers, or at least watch hours and hours of violent football.