My nitpicks are as numerically proceeds:
1) Gregor's eyeglasses fall of his face as he topples down the coliseum-like structure's stairs, yet they appear back on his face in the sequential scene.
2) There is an ice skater cleped Kirilova in the film. However, the subtitles, which appear during the character's announcement apropos of her performance, spell it as Kirlova.
3) Vincent is shot multiple times and has no idea as to where Sam and Seamus are going, yet he is inexplicably aware of where they are going and is able-bodied enough to somehow reach an area ahead of the two and fire upon Seamus just in the nick of time.

Vincent no doubt is wearing body armour, just as Sam was when he was shot.

It's sad that they have to resort to a silly line about Teflon-sprayed bullets because they assumed that most people wouldn't "get" that regular ball ammo can sometimes penetrate body armor.

I guess they thought that, without that line, they'd have people wondering how the bullet got through.