Lindsay Lohan Talks Half Sister, Barbara Walters Cancelation With Jay Leno [VIDEO]

Lindsay Lohan made a high profile television appearance on Tuesday night when she sat for an interview with Jay Leno on "The Tonight Show."

Lohan was there to promote "Liz & Dick," the Lifetime movie about the late Elizabeth Taylor's long and turbulent love affair with actor Richard Burton. The film is Lohan's first starring role in a movie project in years.

Leno kept his interview questions light for the most part, focusing largely on Lohan's work in "Liz & Dick" and her feelings about the iconic international superstar she was portraying.

CLICK HERE to see the full video of Lindsay Lohan chatting with Jay Leno on "The Tonight Show."

But Lohan did remark on several big stories in her personal life, at least briefly.

Leno asked about the recent revelation that Lohan has a half sister she didn't know about from a relationship her father Michael Lohan had with another woman. Lohan insisted she had never heard of the alleged half sister until recently, but she did make one remark about the situation.

"I could give her one word of advice: Good luck with my dad," Lohan said, adding that she is no longer in contact with her father and has no relationship with him.

The 26 year old actress also spoke about her decision to cancel an exclusive, in-depth interview with Barbara Walters for ABC's "20/20." The troubled starlet had already met with Walters on the "Liz & Dick" set and was to sit for another part of the interview, but she called it off after Walters' producers said the interview would include questions about Lohan's legal issues, including allegations that she lied to police officers about a car accident she was involved in this summer.

Lohan told Leno that she didn't think she was ready for that type of interview, but that Walters will be the first in line when Lohan is prepared to talk about those things.

"The timing wasn't right, right now," Lohan said. "I love her, I'm a big fan of Barbara Walters. When it's right she knows she'll be the first person I sit down with."