Netflix viewers given deadline to watch Clint Eastwood movie that's 'one of the most disturbing films ever'

Netflix fans have just days left to watch a US war movie dubbed one of the 'most disturbing'.

The platform is always shaking up its offerings, with new releases being added - and other titles being removed - every so often.

This month, a Clint Eastwood 'masterpiece' is on the chopping block.

Chances are, you've already seen it - but if not, then you don't want to miss your opportunity to catch it with your Netflix subscription.

The 2014 movie follows the life of Chris Kyle (Bradley Cooper), who becomes the deadliest sniper in US military history, with over 160 confirmed kills during his four tours in the Iraq War.

Bradley Cooper fronts the 'disturbing' war drama (Warner Bros.)

The story explores Kyle's reasons for enlisting, the psychological toll of war and the strain that it puts on his personal life, marriage and mental health.

Haunted by PTSD after returning home, Kyle chooses to support fellow veterans facing similar challenges.

The film ends with a major twist, which of course we won't go spoiling here.

Sienna Miller, Luke Grimes, Jake McDorman, Navid Negahban and Keir O'Donnell round off the cast.

Titled American Sniper, it's based on the autobiography of former US Navy sniper Chris Kyle.

You can catch its trailer below:

While topping the box office at the time, American Sniper was also criticized for its portrayal of Kyle and its seemingly one-sided, US-centric view of the Iraq War.

And sadly, Kyle wasn't around to see the success of the movie, as he was murdered before its release.

American Sniper is being pulled from the platform on June 21, so if you were planning a re-watch, then you'd better get a move on.

While you're at it, see what else is leaving Netflix this month here.

Taking to Reddit, one viewer declared American Sniper 'one of the most disturbing movies I have seen in a long time'.

A second agreed: "I was actually horrified by the end scene... Then I realized it was a true story - and I was even more disturbed."

The film has racked up a solid 84 percent score from Rotten Tomatoes audience members, across more than 100,000 reviews.

American Sniper only just joined Netflix in April (Warner Bros.)

"Masterpiece by Clint Eastwood.... such a great war movie and effects it has on our soldiers," one person wrote.

"I liked how the movie turned to the subject of the PTSD so many veterans experience," another concurred. "However, this topic was raised so very late in the film that it seemed a little jarring."

"This was such an engaging movie with great acting and storyline," someone else commented. "It's even better since it's based on true events. Bradley Cooper was amazing in this. It's definitely worth the watch."

American Sniper is streaming on Netflix now until June 21.