If you watch above his body as hes rolling on the grass, you’ll see an airplane dart from right to left (maybe its a bird?) but it jumps in the sky during the .gif “slide show” Can’t tell by the shadows, they are usually the dead give-away.
Damien Walters 2012 show reel. If it is fake I will be furious but watch him and you may believe it is real. However I am not as trained as you at noticing fakes.
I believe the film is sped up for the Meme. The original wasnt that fast, If I remeber correctly