Are some things better left unsaid, even if you're getting married?

Warning: this article contains spoilers for The Drama

It's safe to say Zendaya and Robert Pattinson's new film The Drama has been starting a lot of conversations.

Without giving too much away, the actors play a soon-to-be married couple and, just before their wedding, a shock revelation happens.

The plot twist is one that some people may find distressing and one that's caused a lot of discussion.

But how much is too much when it comes to honesty with a partner? Should everything be shared?

Relationship coach Lisa McFarland said there were some things people should be "fully transparent about" - such as their financial situation, if they have children and whether they have been divorced before.

"We should know everything within that relationship," she told BBC News NI.

"We even want to get into the place of full transparency - which is more than just honesty."

Lisa said that the focus should be on being upfront about things that are going to be relevant in the relationship in the present and future.

"We spend so much time thinking about these past things when we want to be putting in good foundations for the future," she said.

But when it comes to telling a current partner about things from the past, such as disclosing how many previous sexual partners they've had, Lisa said there's no need.

"[Mentioning] that six months in Australia when you slept with a different person every week, I don't know if that's going to be useful to your new relationship."

Kate Gardner, 27 and Alex Trinder, 32, have known each other for two years.

They agreed that when it came to revelations, it is really about the other party's intentions.

Alex joked: "If you killed someone I'd be like 'when was this? Why, why are you telling me?'"

"Oh! I was going to say I'd help you hide the body!" Kate laughed.

Kate explained that, for her, it comes down to whether the information could harm the relationship.

"I guess sometimes you have to build up to trust someone about something, so it depends," she said.

Caitlin Martin, 24 and Samuel Fairley, 25, have known each other for three years but have been together two-and-a-half years.

The couple agreed that it depends on the nature of the information being withheld.

Anything harmful shouldn't be kept secret, but "if you're planning a surprise for them or present, yeah," Caitlin said.

Samuel agreed: "You never want to harm someone but if you're planning a surprise that's still a secret and if you're going to hold that from your partner it's better than telling them 'oh I have a surprise party for you'".

"It's just all about communication. It really just depends what it is," Caitlin added.

Eve Steele, 23, and Adam Patton, 21, have been dating for about a year.

Eve said: "I think that's the whole point of being in a relationship with someone is that that's the person you trust the most with everything.

"Like even if it's good or bad they should know every part of you.

"I don't think we've ever kept a secret from each other," she continued.

Adam added: "It causes a little bit of distrust...so it's important to be honest with each other," he said.

Lisa said that there are a few things that can really help you to have a healthy relationship like have clear conversations on boundaries and both people having a secure attachment style as "then it's so much easier to be transparent".

"We don't want these two broken halves then trying to find their other half," she said.

"We are whole, complete people with all our own histories and things. And we take those whole, complete people, we love and accept ourselves.

"Then we find someone who loves and accepts themselves and we build a relationship," she said.

"Find out what your love language is and find out what your partner's love language is - and learn to speak theirs."

Lisa also advised learning how to have "healthy conflict" and taking time to process things.

According to the counsellor, partners need to stay emotionally regulated and present during difficult conversations, listening without seeing it as criticism but "as something that we can learn from".

She added that while people are schooled on many things, there is little guidance on building a life with someone, and, instead, "all we get is shame and guilt when we do have to ask for help".

So, Lisa advises that "everybody should educate themselves on how to have relationships" and advises that many "couple probably benefit" from therapy.

For those in need of some support with their relationship, Lisa strongly advises reaching out to a professional.

"There is going to be big things that come up in relationships and we're all here to help you," she said.

That's absolutely fine, according to Lisa.

"We are not in our best selves at 11 o'clock and 11:30, and two o'clock in the morning.

"If I could get couples to eat their dinner and have a good night's sleep, I think half the things might be a lot better," she laughed.