Benjamin is, however, at a critical juncture for a 13-year-old Jewish boy. He's about to have his Bar Mitzvah, a typically joyous occasion. Except that Benjamin's meshugina father, Adam (Jeremy Piven), recognizes the occasion as an opportunity to one-up rival agent Arnie Stein (Larry Miller) and the Bar Mitzvah he threw for his own son Zachary (Carter Jenkins) -- a Titanic-themed blowout held on a cruise ship with such Yiddish-inspired gems as "I'm the king of the Torah" and the hip-hop Hebrew classic "Hava nagila/beer, wine, tequila."
Benjamin hopes to distract his father, and musters the chutzpah to invite his hippie grandfather (Gary Marshall) -- whom Adam detests -- as well as his grandfather's flighty girlfriend, Sacred Feather (Daryl Hannah).
The film's impetus comes from plenty of jokes that play off a rudimentary Yiddish vocabulary (but don't worry, it's accessible to those who never even set foot in shul) and a lot of cutesy, heartfelt family-style goodwill as Benjamin matures from a boy to a mensch.