Chris Hemsworth and Mark Ruffalo at Thor: Ragnarok's Sydney premiere

Actor Chris Hemsworth (right) and actor Mark Ruffalo on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Actor Chris Hemsworth (right) and actor Mark Ruffalo on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Actor Chris Hemsworth (right) and Foreign Minister Julie Bishop on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Actor Chris Hemsworth (right) and Foreign Minister Julie Bishop on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

SYDNEY, AUSTRALIA - October 15, 2017: SYDNEY, AUSTRALIA - SMH NEWS: 151017: Foreign Minister Julie Bishop and partner David Panton arrives for the Sydney Premiere of Thor Ragnarok in which he plays the leading role. The red carpet event was held at Fox Studios. (Photo by James Alcock/Fairfax Media).

SYDNEY, AUSTRALIA - October 15, 2017: SYDNEY, AUSTRALIA - SMH NEWS: 151017: Foreign Minister Julie Bishop and partner David Panton arrives for the Sydney Premiere of Thor Ragnarok in which he plays the leading role. The red carpet event was held at Fox Studios. (Photo by James Alcock/Fairfax Media).

Director Taika Waititi on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Director Taika Waititi on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Former Miss World Australia Erin Holland on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Former Miss World Australia Erin Holland on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

(left to right) Actor Mark Ruffalo, Film Director Taika Waititi, Movie Producer Brad Winderbaum and Actor Chris Hemsworth on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

(left to right) Actor Mark Ruffalo, Film Director Taika Waititi, Movie Producer Brad Winderbaum and Actor Chris Hemsworth on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

SYDNEY, AUSTRALIA - October 15, 2017: SYDNEY, AUSTRALIA - SMH NEWS: 151017: Hollywood Celebrity, Actor Chris Hemsworth arrives for the Sydney Premiere of Thor Ragnarok in which he plays the leading role. The red carpet event was held at Fox Studios. (Photo by James Alcock/Fairfax Media).

SYDNEY, AUSTRALIA - October 15, 2017: SYDNEY, AUSTRALIA - SMH NEWS: 151017: Hollywood Celebrity, Actor Chris Hemsworth arrives for the Sydney Premiere of Thor Ragnarok in which he plays the leading role. The red carpet event was held at Fox Studios. (Photo by James Alcock/Fairfax Media).

Singer Johnny Ruffo on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Singer Johnny Ruffo on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Actor Chris Hemsworth (right) and Mark Ruffalo on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Actor Chris Hemsworth (right) and Mark Ruffalo on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Presenter Ksenija Lukich on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

Presenter Ksenija Lukich on the red carpet for the special screening of the film Thor Ragnarok based on the Marvel Comics character Thor, in Sydney, Sunday, October 15, 2017. (AAP Image/Brendan Esposito) NO ARCHIVING

This story Chris Hemsworth and Mark Ruffalo at Thor: Ragnarok's Sydney premiere first appeared on The Sydney Morning Herald.