[1] Petter Olsen formerly owned[2] one of the four versions of Edvard Munch's The Scream (1895), one of the world's most iconic works of art.

[3] The older brother, Fredrik Olsen, had been involved in a legal process against his younger brother concerning The Scream and other Munch works that had been collected by their father, Thomas Fredrik Olsen.

Fredrik Olsen disputed the will but lost the case in the Oslo District Court in 2001.

Petter Olsen's version of The Scream was sold on 2 May 2012, selling for an auction record price of US$119.9 million, including fees and commission.

Petter Olsen sold the painting to raise funds to build a museum in Hvitsten, Norway, where Munch once owned property and near where Olsen has an estate, to house the rest of his father's collection.