Kate Hudson understands "how the [movie] business works".

The 46-year-old actress acknowledges that her career has gone through ups and downs - but Kate always knew that success was just one good movie, or one good role, away.

Kate - who was known for starring in romcoms earlier in her career - told The Hollywood Reporter: "My last agent -- he's since quit the agent world -- said, 'I don't know why I get more upset about the parts you don't get than you do.'

"But I've never personally felt underestimated. I understand how the business works. You're always only one part away from the experience reinvigorating itself."

Kate is also determined to play her part in keeping the cinema experience alive, amid the rise of streaming platforms.

The movie star is thrilled that other leading figures within the industry are similarly passionate about the cinema experience.

Kate - who appears alongside Hugh Jackman in Song Sung Blue, the biographical musical drama film - explained: "It's exciting to see people's fight for this -- not as much about them and their chances as it is for getting people in the theatre.

"When people stand on the precipice of something that could be a lost art, like the cinema experience, it does change the way you think about it. You cannot take it for granted. It makes you lean in even more -- or at least it has for me. It's like, 'Oh right, this art form actually, really matters.' But you're always fighting commerce -- art and commerce are an awful marriage."

Meanwhile, Kate previously credited her mom Goldie Hawn for instilling her with a "fearless" attitude.

The actress admitted that she's had to make some tough decisions at some points in her career - but her mom has always been a hugely supportive influence.

Kate - who made her film debut in the 1998 drama Desert Blue - told Variety: "Thank God I had a mom who said, 'Make your own way'.

"When you become successful in the arts -- and what I mean by 'successful' is when you're making other people a lot of money -- people really like to put you in a box. But nobody becomes an artist to be put in a cage.

"As you get older, you realise you're the only one who makes the decision not to allow yourself to be in that cage. It means having to make fearless and risk-taking decisions that are really, really hard to do when you have a status quo that's safe."