Live Poll: Favorite Left Handed Actors

He used left hand rifle here:

https://m.imdb.com/title/tt0077416/mediaviewer/rm2668343808

Now, either of this could be his acting or he could be ambidextrous as you mentioned. I have derived this list based on a lot of media articles, wikipedia and ranker, all of them lists him as left-handed.

Nonetheless, I have removed Robert De Niro, Jim Carrey and Sylvester Stallone because of too many images denying sole left-handedness. I have added 3 others instead. Thanks.

That doesn't mean anything. I got a colleague who is left handed. When he was a child, they trained him to be right-handed, which is ridicolous. But there was a time, a wide part of people thought that it would be unormal or a disabillity to be left-handed. So today he can sign with left and right. It's symptomatic for not enlightened people to try to make all people equal, because they can't cope with differences. Today there are still camps to turn around young gay people, which is ridicolous in the same kind. Some "lefties" just behave like "righthands", because they were teached so at kids age.

https://en.wikipedia.org/wiki/List_of_people_who_are_left-handed

This list says the deNiro is a left handed person.

@Breumaster 

I doubt that a left-handed would sign with his right hand even if he was trained in his childhood.

PS: Wikipedia is not really a trustworthy source and the article that you linked is not protected against vandalism.

This is a great and precise article concerning the issue: https://celebanswers.com/is-robert-de-niro-right-or-left-handed/

I agree with Cinephile here about different sources. Though I would differ about determining handedness just based on sign or writing, that is one of the major aspect though.

If there is conflicting information, I would rather err on the side where there isn't obvious doubt.

This is one of the sites that I looked at and I think it is good.

https://www.rightleftrightwrong.com/famous_list.html

I doubt that a left-handed would sign with his right hand even if he was trained in his childhood.

It's true though. My father is naturally left-handed but was forced to write with his right hand in school. It stuck.

@albstein 

On  the 101 sources provided by Wikipedia, only 2 mentions Robert De Niro:

Eonline: https://www.eonline.com/photos/16834/left-handed-celebrities/page/2 (not citing sources, nor author)

The Guardian: https://www.theguardian.com/uk/2003/aug/13/2

The Guardian cites https://www.lefthandersday.com 

and Lefthandersday says that Robert De Niro's Twitter account is @TheRobertDeNiro (which isn't true). That account was suspended by Twitter (probably an impersonation).

https://www.lefthandersday.com/left-handers-day/hashtag#.X6tL92hKg2w

Well, people sign their names with the hand with which they've designed the signature and practiced signing.

Corrected. Thanks!

Corrected, thanks. I thought this would have been suggested, but wasn't!!

Thank you. :)

There are max 35 choices for a poll and she seems to be less popular than the others on the list.

Thanks.  I'm a newbie on this site, and I have a lot to learn.