Dwayne Johnson has claimed 'Skyscraper' will send heart rates soaring.
The Rock stars in the upcoming action blockbuster, and he has warned movie goers suffering from vertigo or a fear of heights that the adrenaline fueled film is best seen with a friend.
Speaking in a teaser clip to announce the final trailer, he said: "There's been this Fitbit phenomenon which is very real, where people who are afraid of heights or have vertigo have been going to watch our movie wearing their Fitbits, and they have been reporting heart rates over 100 - sitting down.
The former WWE superstar also revealed that he has been moved to hear audience reactions in the lead up to the July 13 release date.
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