“The Big Lebowski” was released in 1998, and its influence has grown each year. From festivals to pop art, it has become one of the great pop culture phenomena of our time. It’s hilarious, quotable, lovable and, most important for JewishBoston, delightfully laced with Jewish ideas and references. The 20th anniversary of the release of “The Big Lebowski” is March 6, making this the perfect time to look back on the movie and discuss what it has to say about Jewish identity.