MOVIE MISTAKES SO GOOD THEY WERE ADDED TO THE MOVIE

Every now and again, actors and directors manage to go off script and create the funniest, best and often weirdest movie scenes ever… and most of the time we didn't even know that it wasn't part of the original script at all.

Do you remember Robin Williams in Mrs. Doubtfire? The cream icing he had on his face in the kitchen scene wasn't meant to start melting, but because the lights in the studio were so hot, it did.

Always the professional, Williams then went on to pretend that it's all part of the script and stayed in character, creating an epic scene.

When an actor just happens to be very hot and decides to get out of the ocean in his swimming trunks… yes, that's when a good director will keep rolling. That's exactly what happened when Daniel Craig made his debut as James Bond in Casino Royale.

Craig was meant to stay in the water, but later confessed that sand got in his way and he decided to get out. The director kept the scene in and it even made the final cut of the movie's trailer.

In The Princess Diaries, Anne Hathaway slips and falls as her character Mia and best friend Lily have a conversation. Luckily, Mia is a very clumsy character in the movie, so the director kept it in and Anne just stayed in character.

Watch the Screen Rant video below for these and other movie mistakes that were so good they ended up being in the movie.