Former Tv Superman Dean Cain has blasted Seth Rogen for comparing Clint Eastwood's hit new movie American Sniper to Nazi propaganda footage, urging the funnyman to "go to war" and then take aim at soldiers.

The Interview star took to Twitter.com on Sunday (18Jan15), hours after American Sniper shattered January box office records in the U.S. with a $90 million (£60 million) debut, and joked the film, about late Navy SEAL Chris Kyle, reminded him of "the movie that's showing in the third act of Inglorious Basterds".

His remark sparked a wave of online outrage after it was pointed out the footage in question was a real Nazi propaganda film, featuring snipers shooting at Allied forces during World War Two.

Rogen has since attempted to clarify his comment, writing, "I just said something 'kinda reminded' me of something else. I actually liked American Sniper. It just reminded me of the Tarantino scene... I wasn't comparing the two. Big difference between comparing and reminding. Apples remind me of oranges. Can't compare them, though... But if you were having a slow news day, you're welcome for me giving you the opportunity to blow something completely out of proportion."

But Cain still wasn't thrilled by Rogen's remarks, and tweeted, "Seth... I like your films, but right now, I wanna kick your a**. Chris (Kyle) is an American Hero. Period. Go to war. Then we'll talk."

Kyle endured four tours of duty in Iraq and notched up 160 confirmed kills.