Chris Hemsworths Secrets to 16-Year Marriage Spark

and Elsa Pataky have one of Hollywood's most solid marriages. 

And the Australian actor has revealed how he and his Spanish actress wife keep the spark alive, almost 16 years since they walked down the aisle. 

The 42-year-old says the secret to their bond is his wife's brutal honesty, which she delivers to him even when it stings.  

'Elsa's honesty is my barometer for whether something works. I take that with the films I do, the commercials, whatever,' Chris tells People. 

'It's like everyone else can tell me one thing, but I know that I'm going to get the absolute truth from her.

'And it's sometimes dressed up in gentleness from time to time, so that it doesn't shatter my soul, which I appreciate.'

Chris has previously said the secret to their strong relationship is 'having fun'.

Speaking on Jay Shetty's On Purpose podcast, Chris revealed that both he and Elsa have 'an adventurous spirit' and 'making time for one another' is a key factor behind their successful marriage. 

'The complicated times have been when it's been all work, all kids, and all of a sudden the 'us' in the relationship is … sort of non-existent, you're just managing a household or the work family schedule,' he confessed. 

He added that 'removing ourselves from all of that and just having time for the two of us and making space for each other' helped them get to where they are today. 

The two also value 'making each other laugh'.

'There's always that spark, that attraction, but what it comes down to is friendship and companionship in the end.'

has also weighed in on their relationship in the past, explaining how the couple have worked through 'rough patches'.

Speaking in HELLO! Magazine, she said: 'Marriage needs constant work, and you learn a lot from the rough patches.