Sir Elton John has admitted he was “really sobbing” just 15 minutes into watching his biopic ‘Rocket Man’.

In an article for The Guardian, Sir Elton wrote that he had deliberately avoided getting too involved with the production. “I figured it would be uncomfortable for everyone to have the person the film was about lurking around.” Instead, his husband David Furnish was on set most days, making sure the film didn’t stray too far from a truthful representation of the legendary musician.

Seeing the film for the first time, Sir Elton said “I wasn’t prepared for the power of what I was seeing… the whole experience of watching someone else pretend to be you on screen, of seeing things you remember happening again in front of your eyes, is a very weird, disconcerting one, like having an incredibly vivid dream.”

‘Rocket Man’ is a fantastical musical re-imagining of Sir Elton’s life and career, opting to stray from a strictly truthful biopic format and instead portray his artistic legacy. Songs are not necessarily presented in the order or circumstances in which they were written, and large-scale choreography and effects are employed to mirror Sir Elton’s overblown style.

‘Rocket Man’ is released in New Zealand on May 30th.