A still from Oscar Best Picture winner ‘Parasite’ (left) and Donald Trump. TNS

That US President Donald Trump has a motormouth is no secret.

He has yet again found himself in the midst of a controversy, this time involving Oscar Best Picture winner Parasite.

The American head of state made some disparaging comments on the Bong Joon-ho-directed South Korean film, implying that it did not deserve to win the top award.

And oh! Brad Pitt was not spared by him either for scooping the Oscar Best Supporting Actor for Once Upon a Time...in Hollywood.

At a campaign rally in Colorado, the US president slammed the Oscars for giving the best picture award to Parasite, and also took aim at Hollywood actor Brad Pitt.

"By the way, how bad were the Academy Awards this year?" Trump asked the crowd at the rally which took place on Thursday last week.

"And the winner is... a movie from South Korea! What the hell was that all about?

"We've got enough problems with South Korea on trade. On top of it, they give them the best movie of the year. Was it good? I don't know. Let's get Gone with the Wind back please. Sunset Boulevard. So many great movies," he added.

Brad Pitt won the Oscar for Best Actor in a Supporting Role for ‘Once Upon a Time...in Hollywood.’ TNS

Trump linked the political and economic situation of both countries with the prize given to the film that has also triumphed at festivals such as Cannes.

"I thought it was the best foreign film, right?" he asked in reference to the Best International Feature Film category, which Parasite also won.

The film made history by being the first foreign language movie to win the Oscar for best film.

However, never the one to have the last word, Trump's comments were met with a witty response by Parasite’s US distributor, Neon.

"Understandable, he can't read," it said on Twitter, accompanying a clip of the President's rant.

Trump also criticised the Oscars for awarding Pitt for Best Supporting Actor.

"And then you have Brad Pitt, I was never a big fan of his," he said.