Will Smith New Movie Can Flop For All I Care ... It Helped Me Heal

12/9/2016 8:22 AM PST

Will Smith Doesn't Care If His New Movie Wins Awards

Will Smith doesn't give a damn how his new movie does at the box office or how many awards it might grab ... because it helped him cope with his dad's death, and to him, that's all that matters. 

Smith did a Q&A on Facebook Live from the company's headquarters Thursday and opened up about how "Collateral Beauty" made dealing with his dad's death easier. In the movie, Smith plays a man whose daughter dies ... and Will says he learned his dad had cancer just as film prep started. 

Will says the film allowed him to open up to his dad as he battled with cancer ... and when he passed in November, it was easier for him to say goodbye. 

Check out the clip ... you can tell Will's words really come from the heart.