Marisa Abela‘s casting as Amy Winehouse has been pissing people off for about a year — and loads are STILL fuming after the trailer for the biopic dropped … can’t win ’em all.

As far as we can see, Marisa’s not a dead ringer for the late icon … but she’s close enough — going from an average everyday Londoner to a beehive-wearing, heavily-tatted powerhouse in the first international teaser trailer for “Back to Black,” showing her rise in the biz.

Some refuse to cut her slack, with a crap ton of haters hitting X with their fuming takes on Marisa’s casting & also predicting the movie will tank at the box office. Long story short — a lot of users feel she’s just not believable as the late, great AW … both in look, and in voice.

It ain’t all bleak, though — others admit they’re pleasantly surprised at the trailer … enough for them to make a theatre trip — adding that it looks super emotional.

The trailer definitely stirs up some poignancy … Abela’s Winehouse is heard saying she doesn’t pen songs to be famous … only doing it cause she doesn’t know what else she’d do if she didn’t.

She also hopes people forget their troubles when listening to her voice — which arguably they did as Amy’s music touched millions before her tragic passing at 27 from accidental alcohol poisoning in 2011.

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The mixed reaction to the Sam Taylor-Johnson-directed biopic doesn’t come as a surprise as Amy fans have been venting for a while over Marisa looking nothing like the star — also slamming the need for a biopic in the first place.

Though, Amy’s own dad Mitch is totally cool with the biopic … telling TMZ early last year Marisa’s a great choice for the role — even if she doesn’t look exactly like Amy.

Jack O’Connell plays Amy’s husband, Blake Fielder-Civil, and Juliet Cowan & Eddie Marsan play her mom and dad, Janis and Mitch Winehouse.

We’re all about giving the movie a fair shot … which will happen once “Back To Black” hits cinemas on May 10.