i've been working in post-production for a decade now.
this looks like CG with very pedantic compositing work.
there are camera tracking programs which, when given footage and a few pointers, generate a virtual camera for use in 3D simulation software packages that is identical to the one used to capture the original footage.
they have blurred the craft when the lense-zoom blurs the footage, but the granularity is different for a few frames AS it is blurring and a few frames AS it unblurs.
this is a tell-tale sign of post production compositing, and it usually gives away which parts in movies have been overlaid onto footage.
it can never be ruled out as fake for sure, and i wouldn't be surprised if there are man-made craft out there which we have not yet seen before.. (remember the sudden appearance of Stealth Fighters during the Gulf war ?)
but this is my professional opinion on this case FWIW
this looks like CG with very pedantic compositing work.
there are camera tracking programs which, when given footage and a few pointers, generate a virtual camera for use in 3D simulation software packages that is identical to the one used to capture the original footage.
they have blurred the craft when the lense-zoom blurs the footage, but the granularity is different for a few frames AS it is blurring and a few frames AS it unblurs.
this is a tell-tale sign of post production compositing, and it usually gives away which parts in movies have been overlaid onto footage.
it can never be ruled out as fake for sure, and i wouldn't be surprised if there are man-made craft out there which we have not yet seen before.. (remember the sudden appearance of Stealth Fighters during the Gulf war ?)
but this is my professional opinion on this case FWIW