Married Hollywood stars Scarlett Johansson and Ryan Reynolds have shot down reports a blazing fight between the pair was to blame for the actor's absence from California's Comic-Con event at the weekend.

Fans of Reynolds expected the star to attend this year's convention in San Diego, California to promote upcoming comic book movie adaptation The Green Lantern.

But when the X-Men Origins: Wolverine actor was a no show, rumours began circulating online alleging he'd had a furious argument with Johansson, who did attend Comic-Con, prompting him to skip the event.

Representatives for the couple have dismissed the claims.

One tells People.com, "(The report) is completely untrue. Warner Brothers never planned to have Green Lantern as part of their panel at this year's Comic-Con and Ryan is in Europe shooting a film."

A source close to the couple adds, "Any reports of a fight are ridiculous."