This adaptation was terrible
A main portion of the book is dedicated to Heathcliff's revenge. Marrying Isabella, having a child with her. And then Cathy having a child, dying in labour and then Heathcliff exacts revenge on Cathy's daughter by forcing her to marry his son.
This book goes as far as Cathy dying (which happens in the first half of the book) and then the movie ends - there is no mention of the baby that she carried, or of anything which is the key element in the book.
Wuthering heights (despite media's interpretation) is not a romance, there is no romance in the book, it's a book about Heathcliff's revenge and everything before his revenge is merely the reason why he's angry.
Yes Heathcliff loved Cathy, but that is purely what this adaptation focused on.
Also, there are several occasions where live dogs are hung by the neck, and you can watch them squirm and struggle for life - even if these dogs 'were not harmed' it's traumatic to watch as it is real.
Terrible Movie - the Tom Hardy version is much better