The makers of Sesame Street aren't happy if you know it.
They've filed a lawsuit against the producers of a new R-rated film from The Jim Henson Company for misusing their brand.
The film, entitled The Happytime Murders, stars Melissa McCarthy and a cast of Henson muppets.
It follows the story of two detectives — McCarthy and a muppet played by Bill Barretta — as they investigate a series of murders in the seedy underbelly of Los Angeles.
But the trailer, which features muppets drinking alcohol, swearing, using drugs, and offering themselves for sex, uses the tagline "no sesame, all street".
For the creators of Sesame Street, therein lies the problem.
They say the tagline may confuse viewers and lead them to think the film is associated with their wholesome children's television program.
They say they don't want to shut down the movie, but STX Entertainment's misuse of the Sesame Street name is tarnishing their reputation.
The lawsuit is calling for punitive damages and a jury trial.
In a statement, STX Entertainment said it was "disappointed that Sesame Street did not share in the fun", but it was "confident in its legal position".
