Donald Trump . Elon Musk. Tim Cook. And Brett Ratner ? Yes, the “Rush Hour” and “X-Men: The Last Stand” auteur is reportedly hitching a ride with President Trump and his delegation of business and technology moguls as they make the trek to China for a high-stakes summit with Xi Jinping. Ratner, who directed the documentary “ Melania ,” will be on hand to scout locations and prepare for production on “ Rush Hour 4 , ” which he plans to shoot in the country, according to the South China Morning Post . The “Rush Hour” franchise is said to be a favorite of Trump’s, with the commander-in-chief reportedly personally requesting that Paramount revive the Jackie Chan and Chris Tucker buddy cop series. Trump is looking to improve relations with Beijing, which have been bruised by a global trade war and the conflict in the Middle East.…