A cinema-goer suffered a cardiac after his head became stuck under an electronic foot-rest.
The man reportedly bent down to pick up his phone when his head became wedged under the foot-rest at Vue cinema in Birmingham.
The cinema chain has now launched an investigation after paramedics administered advanced life support to restart the man's heart.
The 'freak' accident happened at the Star City leisure complex on Friday 9 March.
The victim - who hasn't been named - was reportedly only freed after fellow cinema-goers broke the foot-rest in the Gold Class seats.
West Midlands Ambulance Service confirmed that it was called to reports of a patient in cardiac arrest at Star City.
A spokeswoman for Vue Cinemas said a full investigation is now underway after the incident last Friday.
Mark Croxford, head of environmental health at Birmingham City Council, added that a health and safety investigation has also begun.