Twenty-three years - and over 30 starring roles since Mad Max propelled him into showbiz supernova - Mel Gibson remains one of Hollywood's most bankable mainstream actors, worth a reported $25 million per film (more than Tom, Brad, Jim, Harrison and everyone else). He was first choice, over Russell Crowe, for Gladiator, but turned it down for The Patriot because he simply preferred the script. This month he brings us We Were Soldiers, his contribution to the Vietnam saga. Directed and written by Randall Wallace, the Braveheart scriptwriter, it's the true story of General Hal Moore, who oversaw the first, doomed military engagement in 1965. A Christian leader-of-men, Moore led 400 troops into the so-called Valley of Death, surrounded by 2,000 North Vietnamese soldiers. With none of the sheen of Black Hawk Down, it is a relentless panorama of explosive trench warfare. Gibson spends much of his time screaming over the gunfire - so much so, he lost his voice during filming.