Actress Lindsay Lohan’s rise to fame and her subsequent fall due to drug and alcohol related problems in Hollywood has inspired a comedy ‘Dogs in Pocketbooks’.Model and heiresss Lydia Hearst Shaw, the 26-year-old heir to the Hearst publishing fortune and daughter of once-kidnapped Patricia Campbell Hearst and Bernard Shaw, will portray a character based on the ‘Mean Girls’ star, the New York Post reported.”Lydia will play a bratty movie goddess in and out of rehab, in trouble with the law, and hounded by greedy agents, predatory paparazzi, off-the-wall stalkers and crazed media — a role obviously based on Lindsay Lohan,” screenwriter Charles Casillo said.”I spent a lot of time casting for the right actress for this screwball comedy, but Lydia is perfect. She’s one of the few supermodels who can actually act. She’s smart, well-read, charming and very beautiful. We looked at a lot of actresses for this role, and I was really knocked out.”Casillo, whose short film ‘Fetish’ was a hit on the festival circuit, however, says that the movie is not an attempt to demean the actress, who is currently completing a court-ordered rehab stint. “It is in no way mean-spirited towards Lindsay. It’s the kind of thing she has spoofed about herself in the past. It’s more of a satire about the crazy people around her and the situations they generate. It satirizes the obsession with modern celebrity.”‘Dynasty’ star Joan Collins will star as a high-powered agent in the movie which begins filming in New York and Los Angeles in February.Collins said: “The script is a satire on the crazed hysteria surrounding show-biz celebrities. I’m playing an aggressive, sexy, powerful woman. For a change.