Making movies can be a taxing and quite hectic experience for the actors involved.
Jetting around the world to different shoot locations, being called back in for reshoots months after leaving a character behind, and performing countless takes of the exact same scene are all staples of the job, and even just being on a film set - which are incredibly busy environments to work in - can be a stressful and difficult time.
It can also be quite a confusing time too, something that these actors can attest to.
Whether it's a studio that's so determined to maintain secrecy that they keep their actors in the dark, a director who deliberately withholds information in order to create a more genuine reaction, or a co-star doing something that leaves their fellow performers wondering what the hell is going on, some actors were left feeling rather bewildered and perplexed when they filmed certain movie scenes.
In some cases, you can even see this confusion embedded within the performance, but most of the time, the actors are doing their best to fight this feeling off.