Even the most professional and talented actors sometimes forget the lines. Nevertheless, most of them have the talent to improvise and deliver the best performance. You'd be surprised to know how many great movie scenes happened because the actor was ill, accidentally slipped and fell or simply ad-libbed. And while in movies everything looks like it happens for a reason, the truth is that a lot of things happens randomly.
We've gathered a list of some of the most famous bloopers and unscripted scenes that made movies better. Scroll below to see them!