Michael Moore has launched an attack on military snipers, the day after American Sniper was released in cinemas.

The war biopic, directed by Clint Eastwood, stars Bradley Cooper as Navy Seal Chris Kyle, who was credited with most confirmed kills in American military history. Based on Chris’s autobiography, the film has received six Oscar nominations including best picture, best actor for Bradley and best adapted screenplay.

Bradley Cooper in American Sniper
Bradley as Chris in American Sniper ((Keith Bernstein/Warner Bros)

Bowling For Columbine filmmaker Michael targeted marksmen in warfare on Twitter.

Michael’s comments came after Seth Rogen claimed it was like the fake Nazi propaganda film, shown in Quentin Tarantino’s Inglourious Basterds.

Michael won an Oscar in 2002 for his documentary Bowling For Columbine, which explores gun violence in America and the main reasons for the Columbine High School massacre.

The 60-year-old director’s other documentary films include Fahrenheit 9/11 about President George W Bush’s involvement in the wars in Iraq and Afghanistan, Capitalism: A Love Story about corporate greed and the global economic meltdown of the late 2000s, and Sicko, focusing on the American health system.

Many people disagreed with Michael and Seth’s comments on Twitter.