Netflix viewers left in tears after watching 'saddest movie of all time'

Netflix viewers have been left in floods of tears after watching a movie they've dubbed as being the 'saddest movie of all time'.

Check out the emotional trailer below, but make sure you have a box of tissues at the ready:

About Time follows Tim Lake, a man who's given the most unexpected gift for his 21st birthday. His father James (Bill Nighy) informs that the men in their family have the ability to travel back in time to revisit moments they've lived before.

Unfortunately, he waits until the end of her trip to reveal his feelings. Charlotte responds by telling him he should've told her sooner.

Heartbroken, he then moves to London where he meets Mary (Rachel McAdams) and the two hit it off, but after travelling back in time to help his friend Harry (Tom Hollander) his meet-cute with Mary is undone.

Tim manages to find Mary again a week later but shockingly she now has a boyfriend and when Charlotte returns things go seriously awry.

There's also a major health issue in the family which sees Tim desperately try to save his dad, a baby-switcheroo and a tragic car crash.

The film was originally released in cinemas back in 2013 and now people are able to watch it at home on Netflix.

"Why is About Time the most amazing and saddest movie of all time?" one Twitter user said. "We might have to get flood insurance for how much Hannah and I are crying."

Another viewer shared: "About Time is just the saddest movie of all time, I want to cry."

While a third person wrote: "About Time might actually be the saddest, deepest movie of all time."

And a fourth person confessed: "Read the plot summary for About Time on Netflix so knew what was coming and I was STILL sad and cried!!!!"

It had positive reviews upon release and was a hit at the box office, earning $87.1 million against a $12 million budget.

We're adding this to our watch list immediately!