Emily Blunt has felt quite uneasy after filming kissing scenes with certain actors.

During an appearance on The Howard Stern show last week, Blunt admitted that she has wanted to hurl after kissing actors with whom she had no chemistry while filming.

When host Howard Stern asked her whether she has ever wanted to throw up after kissing someone onscreen because it was that bad, she responded, Absolutely, absolutely.

I wouldnt say its sort of extreme loathing, but Ive definitely not enjoyed some of it, the Fall Guy actor said.

Earlier in the interview, Stern asked Blunt to share how she develops chemistry with different co-stars on projects. She said that there isnt always a correlation between having chemistry and whether she likes the other actor shes working with.

Howard, Ive had chemistry with people I havent liked at all, she said.

Blunt did not name anyone, nor did she dish on who has made her want to puke, but she did explain why onscreen chemistry is sometimes a strange thing.

Sometimes you can really, really like someone, and you can be pals, and you can have a rapport thats really effortless, but it doesnt translate onscreen, she said, adding that chemistry is an ethereal thing that you cant really bottle up and buy or sell.