However, AppleInsider explains that the new mode could "quickly disable sound systems and haptic feedback, block incoming calls and message and reduce initial screen brightness during a movie".
The new function could be similar to the iPhone's 'Do Not Disturb' feature that mutes alerts when activated.
Apple also owns a patent for 'Theatre Mode', which it had published in 2012. The patent doesn't list 'Theatre Mode', but describes similar technology that would be automatically activated by specific GPS coordinates and cellular triangulation.
"While the user is in the movie theatre, the mobile device deactivates its cellular communications interface and/or automatically sets the device to a silent mode,' reads the patent published in 2012.
"When the user leaves the movie theatre, the portable device enables phone communications and/or restores the ringer setting to the setting utilized prior to the device's deactivation.'
"Hence, a theatre owner or operator may feasibly charge additional in the way of ticket price (or offer as a free incentive) the feature of 'no cell phone interruptions' during certain movies."
The app will be of welcome relief to anyone who has always struggled with their desire to spend $17 on a movie and then spend the whole time not actually watching it.