Marc Malkin Senior Film Awards, Events & Lifestyle EditorWelcome to this week’s “Just for Variety”…We’re just a couple days away from Liza Minnelli’s birthday, which is March 12. As I first told you, the Hollywood legend — and Variety cover star — will be feted that night with “Love Letter to Liza: A 75th Birthday Tribute Celebration,” a virtual extravaganza benefiting The Actors Fund.