Franco, 36, said he likes his sense of humour and loves comedies, reported OK! magazine.
"People might have the impression 'I'm trying to prove something', but I'm doing this for myself. I have a sense of humour about how people perceive what I'm doing as strange - I love being able to mock myself.
"I know most people don't think of me as funny, but I actually have a good sense of humour, and I love comedy," he said.