Stepping on a landmine doesn't make it explode instead it arms the mine with a noticible click sound then lifting up your foot is the thing that makes it explode.

There's this scene at the start of War of the Worlds where the hero races his classic muscle car up this tiny neighborhood street at full tilt, exhaust notes at full blast, and I think he even screeches the tires by slamming the brakes pulling into the driveway. Then he walks up to his neighbor and they're all chill with him. In any other world, the neighbors would have him in handcuffs.

If a girl doesn’t like you, but you just keep pursuing her, everything will eventually work out and you’ll be happy together.

The first time I remember absolutely losing my suspension of disbelief was at the end of the first Mission Impossible reboot where Tom Cruise puts an explosive on a helicopter he's hanging on the outside of that's flying behind a train through a tunnel, and the explosion completely destroys the helicopter and flings him onto the back of the train. Yeah, that helicopter (which probably couldn't be flying through a train tunnel to begin with) was made of far tougher material than Tom Cruise. Any explosion that destroyed it, would have turned him into a stain on the wall of the tunnel.

Hacking. Each and every time it is part of a movie or TV series.

Boffins coming up with a magical new solution to a problem that they somehow know will 100% work despite having done zero experimentation or testing.

Hacking.

There is no way that you keyboard danced for 12 seconds and completed a nmap scan, identified an unpatched target with a remote code execution bug, delivered the payload, pivoted to an account with the permissions you needed, and found the server running the internal application you are looking for.