Henry Cavill has posted a bizarre Instagram video in response to reports he is to be replaced as Superman.

The 35-year-old actor has starred as the iconic superhero since 2013's 'Man of Steel', but it's been suggested he has decided not to continue in the role after Warner Bros. and his representatives fell out over a cameo in 'Shazam!'.

In a brief video clip, Henry - who is seen sporting a T-shirt that reads 'Krypton Lifting Team' - is seen holding up a Superman figurine as 'The Blue Danube' plays in the background.

He captioned the video: ''Today was exciting #Superman (sic)''

The video was prompted by a report claiming the studio is already looking for a new Superman.

A source told The Hollywood Reporter: ''There's a recognition that some parts of the previous movies didn't work ... Superman is like James Bond, and after a certain run you have to look at new actors.''

A subsequent statement from Warner Bros. tried to play down any final decisions made about Henry's future as the superhero.

The studio said: ''While no decisions have been made regarding any upcoming Superman films, we've always had great respect for and a great relationship with Henry Cavill, and that remains unchanged.''

Henry revealed earlier this year that he already had a storyline in mind for 'Man of Steel 2' and had held conversations with the studio about a follow-up movie.

He said: ''I'm having a lot of conversations, behind the scenes, with certain people and we will hopefully be having conversations with other people who are also behind the scenes to make things start happening.

''It is very much in my desire to do a 'Man of Steel 2', a direct sequel to 'Man of Steel', and there is a whole bunch of Superman story that I want to tell. There is a whole style of Superman's character that I'm very keen to tell and I'm looking forward to the opportunity.''