Who said "I'm going to be honest with you."?

This quote is attributed to Forrest Gump.

I'm going to be honest with you. - Forrest Gump

"I'm going to be honest with you."

Forrest Gump Truth

"Life is like a box of chocolates, you never know what you're gonna get."

"My mama always said you've got to put the past behind ya before you can move on."

"I'm not a smart man, but I know what love is."

"Stupid is as stupid does."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."