Dakota Johnson and mother Melanie Griffith's excruciating Fifty Shades of Grey Oscars interview

The terse discussion between the mother and daughter about the raunchy film franchise was an Oscars highlight

Melanie Griffith and Dakota Johnson at the 2015 Oscars. You could have cut the tension with a knife

Dakota Johnson and Melanie Griffith delivered in a competitive category at the Oscars: most uncomfortable interview.

The mother and daughter came as each other's dates for the Academy Awards ceremony, but the atmosphere between the two was more tense than one of Christian Grey's bondage ropes.

There were frosty smiles all round as Griffith told the red-carpet host Lara Spencer that she was proud of her Fifty Shades of Grey-star daughter. Really proud. "I don't know. I'm so proud I've said it so many times it seems like it's not enough," she said in a flat voice.

Spencer asked if Griffith had seen the S&M love story and Griffith curtly replied: "No" while shooting her daughter a look.

Johnson shrugged and said: "Maybe one day."

But Griffith wasn't having any of it. "I don't think I can," she countered. "I think it would be strange."

"I don't think so, it would be fine," said an increasingly terse Johnson. "I think that one day you can see it."

"She's a really good actress," Griffth continued. "I don't need to see that to know how good she is."

Part of Johnson's retort had to be beeped out by ABC News.

At least Johnson and Griffith were accurately representing that precise kind of tension when you've got out of a car having had a massive fight. Surely there's got to be an award for that?