Filmmaker Peter Jackson's private jet is among the civilian and military aircraft searching for missing Malaysian Airlines Flight 370.

Jackson's Gulfstream G650 has been chartered and is being operated out of Perth, Australia to aid with the international search efforts, a spokesperson for the Lord of the Rings filmmaker confirmed to New Zealand media.

On March 8, airline flight MH370 vanished during a night journey from from Kuala Lumpur to Beijing, with 239 people aboard.

The weeks-long hunt for the missing Boeing 777 has so far proved disappointing, with search crews repeatedly spotting objects floating in remote parts of the southern Indian Ocean  but later discovering that the debris was not linked to MH370.

"Peter would not seek publicity for something like this and would actively avoid it in fact," spokesman Matt Dravitzki said.

"A lot of civilian and military aircraft are involved in the search."

The jet, which Jackson purchased in 2013, is reportedly being used to help facilitate communications among the flights scouring the Indian Ocean for any sign of the missing airliner.

Dravitzki declined to comment on whether the writer, director and producer was being compensated for use of his jet or  whether it was offered or requested.

Gulfstream describes the specific model as an "ultra-high-speed, ultra-long-range business jet." The filmmaker's plane is managed by a charter service based in Wellington, N.Z.

Celebrity assistance

Jackson is the latest celebrity assisting in an unusual manner during an international crisis.

Following the massive earthquake that hit Haiti in January 2010, actor John Travolta arranged for several flights — carrying rations, medical supplies and medics — to the devastated country. He piloted his own Boeing 707 from Florida to Port-au-Prince for one of the flights.

Later that year, actor Kevin Costner pitched oil-separating centrifuges from his company, Blue Planet Water Solutions, to help the clean-up following the BP Deepwater Horizon oil rig explosion in the Gulf of Mexico. BP purchased about 30 of the devices, although only some were deployed.

Also after the April 2010 spill, Titanic and Avatar filmmaker James Cameron offered BP the use of his privately owned, manned submarines — which the Canadian director-producer had used to film underwater — to aid in efforts to stem the oil still flowing into the Gulf and repair the rig. Ultimately, BP declined his offer. The oil giant eventually capped and permanently sealed the well.