KEANU REEVES - KEANU REEVES' DIFFICULT SUNDANCE

Hollywood heart-throb KEANU REEVES is finding it hard to enjoy the SUNDANCE FILM FESTIVAL in Utah this week (ends28JAN05), because his younger sister KIM is seriously ill.

The SPEED star's sibling was diagnosed with leukaemia several years ago, but friends tell gossip site PAGESIX.COM her conditioned has deteriorated in recent weeks.

Reeves is in Park City to promote his latest movie THUMBSUCKER, but has kept a low profile outside press junkets.

A source says, "His sister is very sick. Her leukaemia is not getting any better."

Meanwhile the Buddhist actor has become a surrogate father to a friend's son, who is having problems caring for the youngster.

The source adds, "He has taken a little seven-year-old boy under his wing and has become a father figure to him."