NEW YORK (AP) _ Playing a solo castaway on a tropical island turned out to be hard work for Tom Hanks.

Hanks' character in ``Cast Away'' is marooned for four years, so co-star Helen Hunt wasn't around for the scenes filmed in Fiji.

``It makes you crazy,'' he told Time magazine of playing a character who is all by himself. ``You're not sharing the storytelling lifting with someone you can react off of.

``It's almost like making a silent movie. You have to tell every aspect of the story physically, being totally alone.''

Hanks also had to drop 55 to 60 pounds for his role.

``Cast Away'' is set for a Christmas release.