Marc Malkin Senior Film Awards, Events & Lifestyle EditorJean Smart and her “Hacks” co-stars are under pressure. A lot of pressure.After an award-winning first season of the HBO Max series, they’re back for their sophomore outing.“Season 2 for any show means you have to prove yourself,” Smart told me at the second season premiere earlier this week at the Directors Guild of America in Los Angeles. “It’s like, ‘You gotta now show us that wasn’t just a fluke.’”It wasn’t long after “Hacks” became a critical darling that Smart learned the streamer was green lighting another season.“As soon as I started getting the scripts for Season 2, I was said, ‘Oh, my god.