Who said "Mate, I'm not actually sure that's possible."?

This quote is attributed to Captain Jack Sparrow.

Mate, I'm not actually sure that's possible. - Captain Jack Sparrow

"Mate, I'm not actually sure that's possible."

Captain Jack Sparrow Humor

"The problem is not the problem. The problem is your attitude about the problem."

"Not all treasure is silver and gold, mate."

"Why is the rum always gone?"

"I'm dishonest, and a dishonest man you can always trust to be dishonest."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."