John Travolta has revealed he thought "life was no longer interesting" after his son died.
The actor spoke about the death of his 16-year-old son Jett in 2009, during an 'audience with' show at the Theatre Royal Drury Lane, in central London on Sunday night.
The 'Saturday Night Fever' star described Jett's death as 'the worst thing that's ever happened in my life'.
"The truth is, I didn't know if I was going to make it," he revealed. "It took a lot to get me better."
Jett died from a seizure during a family holiday in the Bahamas.
John said the Church of Scientology had helped him carry on after his loss, saying: "I will forever be grateful to Scientology for supporting me for two years solid, I mean Monday through Sunday.
"They didn't take a day off, working through different angles of the techniques to get through grief and loss, and to make me feel that finally I could get through a day."
Back in 2012, John revealed he "even thought about retiring at one point, because it was too much.
"After three years of a lot of support from my church, my fans and family, I thought it was ok to go back to work," he said.