Directors and writers spend months, sometimes even years perfecting a movie scripts.

So you might be surprised to know that some of the most iconic moments from the world’s most popular films were in fact improvised.

Here are a whole bunch of scenes that weren’t scripted, yet still made the final cut. You’ll never watch these movies in the same way again.

Raiders Of The Lost Ark

In the script for the Raiders Of The Lost Ark,  it simply said “big sword fight”. However Harrison Ford was sick and wanted the scene to be over with. After the character dressed in black makes a big entrance, Ford shoots him – this was kept and was actually used in the movie.