They're set to reunite together on the sixth film in the Jurassic Park franchise.
And Sam Neill and Jeff Goldblum enjoyed a break from set on Monday to record a fun video together in which they sang I Remember You by Frank Ifield.
The actor, 72, and Thor: Ragnarok star, 67, were in great spirits as they sang to each other, with Jeff ad-libbing to complement Sam's cheery rendition of the song.
'I remember you': Sam Neill and Jeff Goldblum reunited in fun Twitter video as the Jurassic Park stars sang together during a break from set of the franchise's sixth film on Monday
Jeff looked like his usual dapper self as he donned a black jacket over a turtleneck top, while he covered his salt-and-pepper locks with a fedora.
While Sam kept things casual in a simple white shirt as he sang his heart out to Jeff's skilful piano playing beside him.
Sam also shared a video of them singing to Andy Williams' September Song, joking about their performance, which was shaky at first, he wrote: 'Another #JamWithJeff.
'Hers the thing- #JeffGoldblum flatly refuses to rehearse. So every time is the first time. (sic)'
Heart-warming: Singing to I Remember You by Frank Ifield, the pair were in great spirits as Jeff ad-libbed to complement Sam's cheery rendition of the song
Looking sharp: Jeff looked like his usual dapper self as he donned a black jacket over a turtleneck top, while he covered his salt-and-pepper locks with a fedora
Sing-a-long: Sam also shared a video of them singing Andy Williams' September Song, joking about their performance he said Jeff 'flatly refuses to rehearse. So every time is the first time'
Sam revealed last month that he was heading out on set for his first day filming as he shared a picture of his character and wrote: 'Tomorrow I’m back in The Grant Hat and into the Whole Jurassic World. Terror knows no bounds!'
He followed this with a tweet, adding: 'Hold onto your hats - gettin' my old one back on this week, and facing off dinosaurs once again!'
The actor then went on to remark that he thinks Jurassic World: Dominion is the 'best' film in the series so far by adding: 'Best yet. Excited and terrified - these things will kill ya!'
Exciting: Sam revealed last month that he was heading out on set for his first day filming as he shared a picture of his character
Getting into character: Sam also shared a picture of the fedora that was placed safely in his trailer, ready for him to wear for the day's shoot and looking exactly like his original attire
He tagged co-star Laura, as well as fellow returnee Jeff Goldblum, who starred alongside them in Jurassic Park as Dr Ian Malcolm, reprising that role for original sequel The Lost World: Jurassic Park and fifth movie Jurassic World: Fallen Kingdom.
Sam also tagged stars Bryce Dallas Howard and Chris Pratt, as well as writer/director Colin Trevorrow, who was responsible for rebooting the dormant franchise in 2015.
Sam added: 'I'm obviously a little more... grizzled now!'
Dr in the house: Laura Dern also posted a snap, of her Ellie Sattler action figure. She captioned this, 'In quarantine getting ready to get back to work. #jurassicworlddominion'
Reprisal: Both actors - who appeared together in 1993's original [pictured] and 2001's Jurassic Park III - are set to make their big return to their iconic roles
Laura also posted a snap, of