The hype around 'Barbie' is huge, but so is the debate. Here are 6 reasons the movie is sparking discussion on social media.

The "Barbie" movie has been causing controversy on social media.Mike Marsland / Getty Images

• "Barbie" has been in theatres less than a week, after debuting to much hype.
• Since the movie was released in cinemas on July 21, it has sparked debate on social media.

The "Barbie" movie dropped in theatres to huge hype, bringing in $162 million in its opening weekend. It's barely been out a week and it's been described as a "full-fledged box office phenomenon" as hoards of viewers around the world flocked to cinemas.

It's also caused a whole lot of discussion on social media.

For some people, the movie surpassed expectations; for others, it fell flat; and several aspects of the movie have caused controversy and sparked a lot of debate.

Here's what people are talking about the most. (Warning: may contain spoilers.)