Will Steph show? In the run-up to the 2023 SFFILM Festival’s kick-off event April 13 at Oakland’s Grand Lake Theatre, this has become the most bandied-about question. Obviously, Stephen Curry has received an invitation, since he is the focal point of the opening-night film, award-winning Oakland documentary-maker Peter Nicks’ exceptional “Stephen Curry: Underrated.” But even if the Golden State Warriors star is a no-show, the East Bay filmmaking community will be in the spotlight, with Nicks and Oakland native Ryan Coogler, director of “Fruitvale Station” and “Black Panther: Wakanda Forever,” planning to attend, along with other notables. Although “Stephen Curry:...