Does amnesia ever work like it does in the movies?

i cant rememberDoes amnesia ever work like it does in the movies?
It depends which movie you mean. After i watched 50 first dates, I researched it, and found that people cannot lose merely their short term memory. So it would be impossible for someone to wake up every day thinking that it was a date in the past, like Lucy did in 50 First DatesDoes amnesia ever work like it does in the movies?
I had an amnesia once but I forgot how it affected me.Does amnesia ever work like it does in the movies?
The movies are mostly fiction, so the answer is no