Bertram Fields (born March 31, 1929) is an American lawyer noted for his work in the field of entertainment law. He has represented many of the leading studios, as well as individual celebrities including Michael Jackson, The Beatles, Warren Beatty, James Cameron, Mike Nichols, Joel Silver, Tom Cruise, Dustin Hoffman, Mario Puzo, and John Travolta.
He received his B.A. from University of California, Los Angeles in 1949 and his LL.B. from Harvard Law School (magna cum laude) in 1952. He is a member of the California and New York Bars. In addition to the clients above, he represented George Lucas in contract negotiations with The Walt Disney Company regarding Disney theme parks. He also represented Paramount Pictures in its appeal of the Buchwald v. Paramount case over Coming to America, and in other civil litigation.
Fields represented Jeffrey Katzenberg in landmark action against Disney and obtained multimillion-dollar judgement for George Harrison against his former business manager. He also represented DreamWorks SKG and Steven Spielberg in defeating an application for an injunction against exhibition of Amistad.
Fields represented Bob Weinstein and Harvey Weinstein through years of skirmishes between Miramax and its corporate owner Disney, rarely making public statements until he settled up the brothers’ departure in 2005, without litigation.  Fields and other attorneys from Greenberg Glusker then represented The Weinstein Company from 2005 to December 2017. 
Fields continues to represent Bob Weinstein, who was accused of sexual harassment on October 17, 2017 by The Mist film producer Amanda Segel, who worked for Bob's Dimension Films. Fields has denied the accusations. "It is absolutely not true," Bert Fields said. "What she is claiming is bogus." Fields said that after Bob Weinstein and Segel had dinner together, they concluded they would stay friends, and even though they continued to have dinner occasionally, they maintained a professional relationship. "There was nothing that came anywhere near sexual harassment," he said. "That's not Bob Weinstein. It's Harvey Weinstein, but it sure as hell isn't Bob Weinstein. I've known him for many years. It's all because of what Harvey's done," Fields went on to say, "and this lady is going to come out and get a little bit of this publicity and it's awful. He didn't do a thing."
In June 2008, Dr. Drew Pinsky, in an interview for Playboy, mentioned his belief that for Tom Cruise to be "drawn into a cultish kind of environment like Scientology," he was likely to have emotional problems. He said "To me, that’s a function of a very deep emptiness and suggests serious neglect in childhood — maybe some abuse, but mostly neglect."
Fields, representing Cruise, responded by calling Pinsky an "unqualified television performer" and likened him to Nazi Joseph Goebbels, saying "He seems to be spewing the absurdity that all Scientologists are mentally ill. The last time we heard garbage like this was from Joseph Goebbels." 
Pinsky, a licensed physician of Jewish ancestry, responded through his representative, "Dr. Drew meant no harm to Mr. Cruise and apologizes if his comments were hurtful." The statement continued, "Although Mr. Fields's intent is clearly to slander and discredit Dr. Drew, under no circumstances is Dr. Drew making a blanket diagnosis about Scientology nor Mr. Cruise whom he does not know. Dr. Drew was simply using Mr. Cruise as an example of someone who is recognizable to help the public understand. Again, Dr. Drew meant him no harm."
On March 13, 2012 Bert Fields, attorney for the estate of Mario Puzo filed a counterclaim against Paramount Pictures, who sued the estate to stop the author’s son, Anthony Puzo, from publishing a new sequel to his father’s classic Mafia saga, "The Godfather." Fields was quoted as saying, "Mario Puzo brought vast wealth to Paramount at a time when they desperately needed it. Now that he’s gone, Paramount’s trying to deprive his children of the rights he specifically reserved. I promised Mario I’d protect his kids from this kind of reprehensible conduct. Paramount wanted a war, and they’re going to get one."
In April 2014 Harvard Law School announced that Fields made a gift of $5 million to Harvard Law School to endow the Bertram Fields Professorship of Law.
In September 2015 Fields published Shylock: His Own Story. (ISBN 978-0-9905602-4-1) In "The Merchant Of Venice" Shakespeare gives us only a brief and limited view of Shylock, an enigmatic character who varies with each actor’s interpretation. Now, we’re given Shylock’s full story, his dangerous background, his life, loves and challenges as an educated Jew in 16th century Venice, the motivation for demanding his seemingly bizarre ‘bond,’ as well as what occurred after his fateful confrontation with Portia and the Doge. The novel was published by Marmont Lane. It is dedicated to Bertram Fields' friend, actor Dustin Hoffman.
In 2015 Fields published Destiny: A Novel Of Napoleon & Josephine. (ISBN 978-0-9905602-0-3) This historical novel tells the story of the Emperor and his beautiful Creole lover. The novel was published by Marmont Lane.
Having read English history for years as a hobby, and not satisfied with the books written about King Richard III, Fields spent four years researching and two years writing the non-fiction book Royal Blood: Richard III and the Mystery of the Princes (ISBN 0-06-039269-X), which was published in 1998.
Although he started with a "gut feeling" that Richard was innocent of murdering his nephews, the Princes in the Tower, Fields claims to have investigated the facts as he would for a client he was representing, and he structured the book like a lawyer's brief, identifying the evidence and then drawing the logical implications from the facts. In the same way as in a brief, he discussed the weaknesses in earlier authors' treatments of the same subject, being particularly critical of Alison Weir and her book The Princes in the Tower:
Alison Weir tells her readers that she, at last, has solved the mystery: Richard was guilty. What's more, he was a greedy, ruthless tyrant. However, if Richard was guilty, nothing in Weir's book demonstrates it. Essentially, her 'proof' that he murdered his nephews consists of two skeletons discovered in the Tower of London in 1674, some inferences wholly unsupported by the 'evidence' she offers and the opinions and assertions of 'contemporary' sources such as John Rous and Thomas More, which Weir is inclined to treat as proven fact.
The conclusion Fields reached is that the probability that the princes were, in fact, murdered is about 50% to 70%, and if they were, the probability that Richard did it is in the same range, so the logical probability that Richard is guilty is 25% to 49%, which is less than 50-50. Fields says DNA analyses of the bones dug up in the Tower of London in 1674 would change the odds on whether the princes were murdered but might not affect the odds on who did it, if anyone did, so this mystery may never be solved.
Fields has also written two novels, published under the pseudonym "D. Kincaid": The Sunset Bomber (1986, published by Corgi Books in London) which was also published under the name Final Verdict (1988), and The Lawyer's Tale. (1993).
In 1997, Fields conceived an open letter to then-German Chancellor Helmut Kohl, published as a newspaper advertisement in the International Herald Tribune, which drew parallels between the "organized oppression" of Scientologists in Germany and Nazi policies espoused by Germany in the 1930s. The letter was signed by 34 prominent figures in the U.S. entertainment industry, including the top executives of MGM, Warner Bros., Paramount, Universal and Sony Pictures Entertainment as well as actors Dustin Hoffman and Goldie Hawn, director Oliver Stone, writers Mario Puzo and Gore Vidal and talk-show host Larry King. The letter generated widespread controversy.
Fields has one son, James Elder Fields. James Elder Fields has a BA from Wesleyan and a law degree and Ph.D. in economics from Stanford University. He resides in Hawaii. Bert Fields has a grandson, Michael Lane Fields, born 1984.https://publishedpr.com/news/bert-fields-named-top-entertainment-attorney-of-the-year-for-2017-by-the-international-association-of-top-professionals-iaotp.html Bert Fields also has a granddaughter, Annabelle Fields, born 2005.
A serious music enthusiast, Bertram Fields performs and records as a singer and a vibraphonist with Les Deux Love Orchestra, led by Bobby Woods.