Shares in Disney have dropped by nearly 5% in response to a disappointing debut for its highly anticipated "Avatar" sequel "The Way of Water." Why it matters: Investors are looking to see whether Disney can increase profitability in its traditional businesses, like theaters and parks, as its streaming losses continue to mount. "Avatar: The Way of Water" needs to bring in at least $2 billion globally over its lifetime to reach profitability. * Its performance will determine whether the famous James Cameron movie franchise lives on past its second installation. Details: The sci-fi sequel brought in $134 million in its...