As the world’s top international acquisitions executives passed through border control at LAX this week, they weren’t only getting their minds in gear for a week of LA Screenings , but were also thinking how Hollywood’s big merger might change their futures. With Paramount set to acquire Warner Bros. Discovery (WBD) for $110B, the entire buying ecosystem could be set for an overhaul not seen in many years. Many of those buyers were in situ when Disney bought Fox’s entertainment assets in 2018, so to see one studio snap up another is not an unprecedented scenario, but there’s a real sense the Par-WBD deal is different. What it will mean is almost entirely unknown right now, but many believe it will ultimately shrink the number of studio vendors at LA Screenings of the future. “We’ve had to deal with this in the past when we had deals with Disney and 20th Century Fox,” one buyer observes. “We watched as Fox was absorbed and a player was moved off the board.…