Landau collaborated with James Cameron on such blockbuster films asTitanicand theAvatarfranchise.

Other credits includedSolaris, Alita: BattleAngeldirected by Robert Rodriguez, andHoney, I Shrunk theKidsandDick Tracy.

Rest in peace, dear Jon.

Jon Landau speaks at the Hand and Footprint Ceremony for Director James Cameron at TCL Chinese Theatre

Jon LandauAlbert L. Ortega/Getty Images

You will be deeply missed.

Avatars Sigourney Weaver said: There were two poles in ourAvatarworld that kept it spinning.

Jim Cameron was one pole, and the other wasJon Landau.

Jon Landau

Jon made impossible feats of filmmaking seem doable on a daily basis.

He brought a sense of adventure, warmth and community to everything he did.

His loss is incalculable, and we send our deepest sympathies to his family.

Thank you for sharing him with all of us.

SaidfellowAvatarstar Sam Worthington, Jon was all heart.

He made everything and everyone he touched feel they could be better.

He led with humor and strength, compassion and kindness.

The People say all energy is borrowed and someday you have to give it back.

I see you, Jon.

TitanicandAvatar: The Way of Waterstar Kate Winsletalso remembered Landau.

Jon Landau was the kindest and best of men, she said.

His strength in life was knowing the importance of family, at home and at work.

He was always full of smiles and gratitude.

I cant believe I am writing this, cant believe he is gone.

His legacy and leadership will live on forever.

Alan Bergman, co-chairman of Disney Entertainment, which producesAvatar, issued a statement on Landaus death.

His remarkable contributions to the film industry have left an indelible mark, and he will be profoundly missed.

Our thoughts are with Jons wife, Julie, and his family and loved ones during this difficult time.

Jon was not only a monumental figure in the film industry but also a cherished collaborator and friend.

On behalf of all of us at Weta FX, it was an honour to work beside him.

His dedication to the art of film making inspired us every day.

Our thoughts are with his family and loved ones.

A post shared by Zoe Saldana (@zoesaldana)

Director Robert Rodriguez also bid farewell to his colleague.

Devastated by the loss of my friend and Alita, producer Jon Landau.

He loved his family and his extended filmmaking family.

He was a true inspiration and will be greatly missed.

Devastated by the loss of my friend and Alita producer Jon Landau.

He loved his family and his extended filmmaking family.