Near misses happen pretty frequently, though it’s rare that they’re caught on video.
Check out this video of a near miss between an Aerolineas Argentinas A340-300 and UTAir 767-300 at Barcelona Airport on July 5, 2014:
Airline-safety.net has the lowdown on what happened:
An UTAir Boeing 767-300 (VQ-BSX) and an Aerolineas Argentinas Airbus A340-300 (LV-FPV) were involved in a runway incursion event at Barcelona Airport (BCN/LEBL), Spain.
Aerolineas Argentinas Flight AR1163 to Buenos Aires was taxiing to the holding point of runway 25R for take-off.
ADS-B data logged by Planefinder.net suggest the A340 taxied along taxiway K, turning left on D. On taxiway D it crossed runway 02. The flight then turned right onto taxiway M. It taxied all the way down M towards the holding point of runway 25R.
However, the flight again had to cross runway 02. At the same time UTAir flight UT5187 from Moscow was on final approach for landing on runway 02. The crew initiated a go around and landed safely at 05:06.
ADS-B data logged by Flightaware24 suggest the B767 had descended to 250 feet before the go around was initiated.
Distance from the runway threshold of runway 02 to the point where the A340 crossed at taxiway Mike is 1166 m (3826 ft).