Funnywoman Roseanne Barr is getting serious about politics - she has filed documents to become the Green Party's official candidate for President.

If successful, she'll go up against President Barack Obama and either Newt Gingrich or Mitt Romney in the race for the White House in November.

And her big issue, according to TMZ.com: she wants marijuana legalised. (KL/WNWCZM/KD)