Wrong cell data if fast scroll CollectionView swift 5 - uicollectionviewcell

Question

Can anybody help me with CollectionView? I parce JSON from some API, and get String values - title and image adress, then assign that Data to custom collectionViewCell in method cellForItem(). BUT than i fast scroll the collection view some cell can be with wrong images, or duplicate images. I also override method prepareForReuse in my custom cell class and set cell.image = UIImage() , but it didnt work. Please help me to understand what wrong)
Sorry for my poor English...
collectionViewController
'''
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Result",
for: indexPath) as! ResultCell
let film = results[indexPath.item]
cell.name.text = film.title
cell.imageView.layer.borderColor = UIColor(white: 0, alpha: 0.3).cgColor
cell.imageView.layer.borderWidth = 2
cell.imageView.layer.cornerRadius = 10
cell.layer.cornerRadius = 10
// setUp image for cell
cell.imageView.image = nil
contentManager.getImage(film.poster.image, cell.imageView)
return cell
}
'''
method get image
'''
func getImage(_ url_str:String, _ imageView:UIImageView) {
let url:URL = URL(string: url_str)!
let session = URLSession.shared
let task = session.dataTask(with: url, completionHandler: {(data, response, error) in
if data != nil {
let image = UIImage(data: data!)
if(image != nil) {
DispatchQueue.main.async(execute: {
imageView.image = image
imageView.alpha = 0
UIView.animate(withDuration: 1, animations: {
imageView.alpha = 1.0
})
})
}
}
})
task.resume()
}
'''
Cell custom class
'''
class ResultCell: UICollectionViewCell {
#IBOutlet var imageView: UIImageView!
#IBOutlet var name : UILabel!
override func prepareForReuse() {
self.imageView.image = UIImage()
self.name.text = nil
super.prepareForReuse()
}
}
'''