A large portion of the main titles consists of stereotype characterizations over a footage of camera flying through something, which predates Deadpool (2016) by a few months, but is very similar in approach. As there were no leaks of the latter movie's main titles it is most likely a coincidence.
All building explosions created in the video game Demolition 1.2.
Zelenogradsk frames was filmed in the same travel of Sergey A. in Kaliningrad oblast, where was filmed frames for Jaws 19 (2015).