The Iraq war has emerged as the big topic at this year's Venice film festival, with a film Saturday by a Canadian director showing the harrowing toll it is taking on returning US soldiers. Coming just one day after "Redacted," Brian De Palma's dramatisation laying out the shocking facts of a rape and multiple murder in Iraq, Academy award-winning Paul Haggis unveiled "In the Valley of Elah," also inspired by true events, this time on US soil. Gina Doggett reports.