'I miss them. Do you know what that feels like?' New Finding Dory trailer sees forgetful blue tang on epic quest to find her parents... with a little help from her fishy friends

The ever forgetful blue tang Dory has finally remembered something - her family.

In a new trailer for Finding Dory which premiered on The Ellen DeGeneres Show on Wednesday, the fish enlists the help of her friends as she embarks on a journey to find her parents.

The clip begins with the blue tang, voiced by Ellen, joining Nemo on a school field trip to the stingray migration.

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Just keep swimming: A new trailer for Finding Dory premiered on The Ellen DeGeneres Show on Wednesday

'Migration is about going home, which is where you’re from,' a stingray tells the children, who ask how they know where to go.

'Instinct. Something deep inside you that feels so familiar you have to listen to it,' he replies, as Dory is shown having a memory.

The voice of Dory's mother is heard promising that she will 'never forget' her child, but Dory asks: 'What if I forget you?'

Then in the present day, we see the fish suddenly remember her parents, proclaiming: 'My mom, my dad, I have a family!'

An epic journey: The film sees the forgetful journey on a quest to find her parents

A memory: Dory is on a school trip to the stingray migration with Nemo when she remembers something

She adds to Nemo's father Marlin: 'I miss them. Do you know what that feels like?'

When he sadly replies that he does, she shouts that they 'better get going' and swims off.

It appears however that it isn't long before Dory gets separated from Marlin and Nemo, as we then see her asking for help from other sea creatures, telling them she is looking for her family.

Meanwhile Marlin goes for a ride with hippie sea turtle Crush, confessing that he thinks he is 'going to be sick'.

'I have a family!': The fish remembers her parents, and realises that she must set off to find them

Scary: At one point, Dory almost gets picked up by a curious child in shallow waters

Going it alone: It seems that the blue tang quickly gets separated from Marlin and Nemo

During the journey Dory runs into an old friend named Destiny, who remembers her forgetful nature fondly.

'It was so much fun because I’d tell you a story and then you’d completely forget about it, and then I’d get to tell you about it over and over again,' the whale shark (voiced by Kaitlin Olson) recounts.

While there are plenty of heart-wrenching scenes in the trailer, and a hold-your-breath moment where Dory is almost picked up by a curious child in shallow water, there are some funny bits too.

Uh oh: At one point, Dory ends up in a kitchen with an ill-tempered octopus named Hank (voiced by Ed O'Neill)

That was a bad idea: The octopus slithers into the sink, where he turns on the garbage disposal

She gets by with a little help from her friends: Dory asks various sea creatures to help her find her family

At one point the fish ends up in a kitchen with an ill-tempered octopus named Hank (voiced by Ed O'Neill) who slithers into the sink before accidentally turning on the garbage disposal.

Albert Brooks is returning as the voice of Marlin, while the role of Nemo has been taken over by Hayden Rolence.

Diane Keaton and Eugene Levy will provide the voices of Dory's long-lost parents Jenny and Charlie, and Ty Burrell will voice a whale named Bailey.

A familiar face: The fish runs into a whale shark named Destiny, who turns out to be an old pal

'It was so much fun!': Destiny liked getting to re-tell all of her stories, because Dory would 'completely forget about' them

All-star cast: While Ellen returns as Dory, Idris Elba, Dominic West, Michael Sheen and Diane Keaton are among the stars providing voices for the movie

Meanwhile Willem Dafoe portrays a Moorish idol and Vicki Lewis plays a four-striped Damselfish named Deb (and her sister, which is actually her reflection, named Flo).

Idris Elba, Dominic West and Michael Sheen also provide voices for the movie, but their characters are yet to be revealed.

Disney Pixar's Finding Dory swims into cinemas in the US on June 17 and the UK on July 29, 13 years after the release of Finding Nemo.

'I'm going to be sick!': The trailer also sees Marlin going for a ride on Crush, the hippie sea turtle

He's back: Albert Brooks will once again voice Marlin, while the role of Nemo has been taken over by Hayden Rolence

Coming soon: Finding Dory swims into cinemas in the US on June 17 and the UK on July 29, 13 years after the release of Finding Nemo