The former James Bond star was left a single parent when his wife Cassandra lost a four-year battle with ovarian cancer in 1991 at the age of 41. He raised their young son, Sean, alone until he re-married.
Brosnan said the new movie "Love Is All You Need" is close to reality for him, reported Contactmusic.
"I went through it all, very publicly. To watch someone you love have their life eaten away by this insidious and horrid disease becomes an indelible part of your psyche. It certainly did for me and, of course, when I received this script, the challenge of playing this part was not lost on me.
Brosnan married his second wife, Keely Shaye Smith, in 2001.