Platt worked in
summer stock theatre as a costume designer in New York and there met
Peter Bogdanovich, whom she later married. Despite the breakdown of her marriage to Bogdanovich, Platt was again production designer on ''
What's Up, Doc? (1972) and Paper Moon'' (1973). Bogdanovich commented that: "She worked on important pictures and made major contributions. She was unique. There weren't many women doing that kind of work at that time, particularly not one as well versed as she was. She knew all the departments, on a workmanlike basis, as opposed to most producers who just know things in theory." and
A Map of the World (1999). She wrote the screenplay for the 1995 Academy Award-winning short film
Lieberman in Love, based on a short story by
W. P. Kinsella. Platt worked extensively with
James L. Brooks throughout her career. She was the executive vice president of his production company
Gracie Films from 1985 to 1995. by cartoonist
Matt Groening. She suggested that the two meet and that Brooks produce an animated TV version of Groening's characters; the meeting spawned a series of
short cartoons about the Simpson family, which aired as part of
The Tracey Ullman Show and later became
The Simpsons. In 1994, she was awarded the
Women in Film Crystal Award. Brooks said that Platt "couldn't walk into a gas station and get gas without mentoring somebody. Movies are a team sport, and she made teams function. She would assume a maternal role in terms of really being there. The film was everything, and ego just didn't exist." In 2003, she appeared in the BBC documentary film
Easy Riders, Raging Bulls. Platt was working on a documentary about the filmmaker
Roger Corman at the time of her death. ==Personal life==