By the texture it looks like there is, the one on my A4 was so neatly placed that it took until the corner started lifting a couple of years later to realise.
Carefully check in one of the corners with the nail of your thumb or similar. All my Elektrons have this film on their displays and so far I’ve left all of them on, even though it shows in some areas (e.g. tiny bubbles on my DTs display). Still better than getting scratched, I guess.
I dropped a patch lead on my A4 screen last year, and was really worried that I’d scratched it so badly that I’d need a replacement. Then I realised from reading posts on here that there was in fact a protective film over the screen; so I’ve left it on in case of further mishaps…