He had a serious weight problem even in his Warner days. He was already overweighted in "Under Siege 2" and "The Glimmer Man". I don´t know why it´s so hard for him to Keep his weight down, even back in the mid 90´s.
He did it in fall 2000 for the shooting of "Exit Wounds" because producer Joel Silver forced him to do that, otherwise he could forget his Warner comeback, Silver told him.